Comments

• Sean Keller

  1: Scientists are excited to find these planets because it could mean that there are other star systems in the universe. (Star system=Galaxy=Solar System)
  
  2: I don't know how they would do it, but I do think that they would have to take how big it is, which means calculate the volume, and then determine the mass from that.
  
  3: Really, to be honest... NO. I don't think there is a scale big enough. Even though the planets could be... ready... "In a galaxy far, far away...(DA DA DAAAAAAA!)" They still could use what they know about the volume if they can figure out the volume. I don't know, but honestly, How would they know that the planets were "LOW-MASS"? (Sigh)
  Got to go,
  Sean Keller

  10/20/2009 1:20:43 PM
• abby montalto

  1.they are exited to be finding a low mass planet because astromimers may need to reverse their theies about the planets. 2. they can mechure the mass of the planets even though they have never visited the planet befor they could
  reseach from earth they could also consruct a model of those planets.3. Even if they could visit the planet they would have to use somthing bigger than a mass scale because they dont make them big enough depending upon the size of the planet it differs. they could take the meshurments and thn multiply thenm to find out the volume that would lead you to find the mass of the object.

  10/20/2009 1:23:17 PM
• olivia gibbs

  1. Scientists are excited to find low-mass planets because "most likely mean Earthlike sizes, such planets are considered to be the best candidates in the search for extraterrestrial life." from article.
  2.i think they know the mass of the planets they have not even visited by estimating using the mass of our planet as a refence.
  3.no i do not hink there is a scale to measure the mass of the entire plante but the use a tool called spectrograph which they can see stars that wobble which means there is a planet and it helps estimate the mass of the planet.
  
  that was the hardest blog yet, i think but i tried my hardess!,
  olivia gibbs

  10/20/2009 1:24:16 PM
• jake moore

  1. they are probably exited because if something goes wrong inn the future , we can travel to the planet quicker because of new and faster technology
  2.they probably measured it by comparing it to the mass of earth and try to see if its bigger or smaller
  3. they prabably will have a new scale that is measured up to be 100 miles for instants.ar they can see ifthey can get a scale of it and find the cercumferance of this

  10/20/2009 1:25:02 PM
• Jake mcgrath

  1).I think scientist are happy to find a low mass planet because there are none or not that many in our solar system so they can test them now 2).I think that there is now a kind of scale or measurment device that can now tell the mass of something even if its thousands of miles away 3).If they did visit the planet they could probably measure a small part of the planet and go through a whole big thing of number, multiplacation, and division to accuratley figure out the mass.

  10/20/2009 1:25:25 PM
• Jordan Hartley

  1)it would be the best candidate for extra terrestrial life.
  2)i do not know
  3)i don't even know how they've measured earth before. it doesn't seem possible to me

  10/20/2009 1:30:51 PM
• scott duncan

  1) they are excited because low mass mean that livig things can live there
  2)by estimating, by using a specil telescope
  3) they could use a specil rocket ship calculate the mass roughly

  10/20/2009 1:33:16 PM
• scott duncan

  hi

  10/20/2009 1:33:55 PM
• Matt mcglynn

  1 they are glad because earth is earth like.
  I'll finish later
  m&m

  10/20/2009 1:41:07 PM
• Hannah Johnson

  1. they are exsited because those planets can posably have life.
  2. probly a new scale or a mshene
  3. ther4e might be a new invented one

  10/20/2009 2:16:26 PM
• Torie Tsongalis

  1) I think scientists are really excited for these "low mass" planets! I found this part of the article particularly more interesting from the other parts of the article. The scientists are really excited because of the low mass. In this article, they mention that low mass planets, are planets like earth. Earth has low mass, and it supports human life. These scientists are excite because of the fact that the low mass planets are the planets that are more likely to support extraterrestrial life! This means that these planets could support life, and living things, Not necessarily "green martins alien things", but things such as plant life, and possibly a new species of mammal, or cold blooded animal!
  2) Well, these scientists found these planets using a tool called a spectrograph. This tool allowed them to find out that their are other planets out there that can possibly support life. Well scientists I don't think can really "measure" the mass of a huge planet. I'm not sure even if scientists know the mass of our own earth! It is just to big to measure, and I am pretty sure that there is not a GIGANTIC scale out there to measure plants, bigger than out own earth, while the earth may seem small, it is really huge and covers roughly 197 million square miles!(I read that on the internet so I don't really know if it is true or not)So scientists would have to make a really really good estimate, or hypothesis, then they would have to find things that would support it, like observations, variables, and constants!So my best guess is that the scientists, figured out the mass, by forming an educated guess, and having things to back it up.
  3)
  I think the only way that the scientists would have been able to measure this planet in mass, even if they had been able to visit it, is the reason in part 2 that I had written. They would have to make a very accurate and a very educated guess, about how much mass the planet has. I am not sure, but I do not think there is a scale as big as these planets, so therefor, I think the only way these scientists would have been able to measure these planets, is by following some of the steps of the scientific method. :D
  
  ~Torie
  ~~~~~~~~~~~~~~
  P.S What does the word exoplanet mean?? I saw in in this part of the article,"The largest newly discovered exoplanet is a monster at seven to eight times Jupiter's mass, he estimated." Thanks :D
  
  
  

  10/20/2009 2:32:54 PM
• Taylor Starkey

  Hi,
  1.Since there is lower masses that most likley means earth like sizes.
  2.They do some math.Each planet there is 5 times the mass.
  3.There is not a big enough scale to meusure it but they do more math there is 5 times the mass in each planet.
  
  -Taylor Starkey

  10/20/2009 2:40:09 PM
• Dan Tedesco

  Scientists are excited to find low mass planets because low masses most likely mean Ea-rthlike sizes, which means they might have ext-raterrestrial life!
  Scientists could discover the mass by knowing what the mass of Earth is, then multiply by 5( because its 5 times as big).
  I honestly don't know #3.

  10/20/2009 2:52:42 PM
• Jill Scannell

  1: Scientists are exited to find low mass plants because that means they are more likely to have life on them.
  2: Scientists are discovering the mass of the planets by using the scale system. Such as 1 inch equals such and such amount of miles. They can find the length and the height by using scales, which then leads to the volume which leads to the mass.
  3: Even if they did visit the plant they would still have to use scale, such as one mile equals such and such amount of kilograms. Then from there once again they would find the volume, length, height, mass, ect.

  10/20/2009 2:56:58 PM
• Jacob Sackett

  1) Scientists are excited to find low mass planets, because they are not normal planet size(smaller than Earth and the same size). Scientists also get excited to find low mass planets, because that means there is a very high chance of life on that/those planets.
  
  
  2)I think that they have some type of a tool that is put in a satilite and they can weigh it. I think that in the nearest stailite they have some type of weighing program thing; so when they turn it on, it is like a scale and tell you the mass.
  
  
  3) I think that if they go to the planet, they have a scale that they will huse(just a normal size scale). I think that they will go to the planet, and weigh it with a scale.they will take it and put it on the bottum of the planet, and see how much it weighs.

  10/20/2009 3:01:32 PM
• Ashley Goodacre

  1)Scientists are excited to find low mass planets because they are earth size planets.
  2)The scientists are discovering mass by just looking at the new planets compared to the other planets already here. Mass is how much space an object takes up. So if you know how big earth is about then if you look at earth and the other planets you can say that is a bout how ever many times bigger than earth.
  3) if they did visit the planet then i think that it would be more difficult to calculate the mass of the entire planet.But they could find the mass if they built buildings and houses they could find how much space the buildings and houses took up.

  10/20/2009 3:30:51 PM
• kyle calcia

  i got a problem my computer cant pick up the website
  
  -kyle calcia

  10/20/2009 3:35:23 PM
• Lucas Smith

  1: Scientists are exited to find low-mass because they are considered to be the best candidates in the search for extraterrestrial life.
  2: Scientists are discovering the mass of a planet they never visited using
  an instrument called a spectrograph which detects wobbles in a star's orbit caused by the pull of unseen exoplanet.
  3:They can calculate the mass by the density and volume.

  10/20/2009 4:01:50 PM
• Bill Dowd

  Scientists are exited about finding low mass planets because they serve as canidents to finding new life. mabye from far away they can see it's the same size as earth and tey can use a estamate of the earths mass and giving it to the other planets. No there probably isn't a scale that big and they might be able to get the weight of the substances on it. Like earth has rocks and dirt. Then the can multiply that by the volume of the planet and then hopefully get the mass
  
  Bill

  10/20/2009 4:05:32 PM
• mikayla hebert

  They are excited to see a low mass planet because it means that it is like Earth and it could possible have some sort of life on it.They found the mass of the planets by using an instrument called HARPS this instrument located a low-mass star and were there is a low-mass star there is usually a low-mass planet near by. I think that they can calculate it by see the mass of Earth and then the mass of Jupiter and then adding the masses of them together and then they will find the mass of one of the new planets.
  Mikayla Hebert

  10/20/2009 4:15:26 PM
• Kali Orn

  1. The scientists are excited because planets with ''low- mass''are most likely to have extraterrestrial on them.
  
  2. I think that the scientists are making a hypothesis because the planets are so big, that they can't measure it.So the only way they could find the most accurate measurement is to make a hypothesis.
  
  3.I don't think that they have a scale big enough because some of the planets are two times bigger.If the planets are two times bigger, we wouldn't be able to fit the machine on our planet.Even if we could, it would be to much money and that would mean more taxes, which would mean chaos.People would start living on the streets again and the economy is already horrible.Even if we could afford the scale, we still couldn't keep it on this planet.I think the only place we could build it would be outerspace,but what if something happened,or went wrong?Could they still build it? If they have to melt pieces to weld them together,how would they get the fire started?Or keep the heat? There is no oxegyn in outer space and fire or heat need air to survive.

  10/20/2009 4:23:43 PM
• Kaitlyn Gilmore

  1.)Scientists are excited to find "Low-Mass" planets because...since low masses most likely means Earthlike sizes and the planets are considered to be the best canitdates in the search for extralerrestreal life. That is why scientists are excited to see "Low-Mass" planets.
  2.)I think that the scientists figured out the mass of a planet that they never visited by....using the "Red dwarf star"as a target since its easier to detect "low-mass" satilite planets.
  3.)Even if the scientists visited the planet to calculate the mass of an entire planet you would have to use a triple beam balance.Yes there is a scsle and its called the Triple Beam Balance.
  
  Kaitlyn!!!!! Gilmore!!!!!!

  10/20/2009 4:27:39 PM
• Nick Behonick

  1)There excited because Low density means better chance of life on that planet .
  2)I think they found earths mass and compared it to each planet .
  3)I think they would first find the volume then the density and finally divide the two .
  
  
  - Nick B
  

  10/20/2009 5:02:19 PM
• jenn ross

  Well good to see everyone!
  Here's part 1 to the density question:
  The reason scientists are excited about finding exoplanets with low-mass is because Earth happens to be a planet a low-mass.This makes scientists happy because Earth can support life. The scientist from the paper was pretty confident that other Earth like planets are everywhere.
  PART 2
  I think that they discover a planets mass by how it's tilt is and how big it looks in a telescope. They might be able to see how many centimeters it is across and then convert them to kilometers. then be able to tell the size and figure out the mass.
  PART 3
  I'm not to sure how to answer this...
  when they get on the planet they could walk around the whole planet. But this is time consuming and the gavitational pull might not be as strong ,so the astronaut would float off in to space.
  I don't know if i covered the whole part of part 3 ,but i put all my knowledge to the test
  :)
  JENN ROSS

  10/20/2009 5:12:50 PM
• Meaghan Riedle

  Scientist are excited that there are low-mass planets because since low masses are most likely mean that earth like size planets are considered to be the best canidates for external life and scientist are confident that there are earth like type planets every where. There discovering the mass of a planet by using a instrament called a spectrograph known as HARPS, the spectrograph detects wobbles in a stars orbit caused by the pull of an unseen exoplanet. If they could visit the planets they mabey could measure it with a really long rope. But they would need the next generation of radio-velocity to do that.
  Meaghan Riedle:)
  

  10/20/2009 5:39:14 PM
• emelie watson

  Scientists are exited to find low-mass planets because there could be other living things on it.
  How they are discovering the mass of a planet if they never visited it is by using a spectrograph which dectects wobbles in a stars orbit.
  If they visited the planet they would tell the mass of the entire planet by its gravity and how the planet observes another planet or body that is passing close by or orbiting the other planet to see how the path is affected by its gravity.

  10/20/2009 5:42:16 PM
• molly mcnamara

  1. scientists like low mass planets because they are more earth like sizes so its easy to find the mass.
  2. they make models of the planets and draw pictures of the planets.
  3. there is probably not a scale big enough to find the mass of a planet.
  bye! molly mcnamara

  10/20/2009 5:51:49 PM
• veronica szymczak

  A reason why scientists are excited about finding low mass planets is because they are the best candidates for extraterestrial life.i think the scientists are measuring the mass by determining the size of the planet and estimating the mass.one way i think they would measure the mass if they visited the planet is by maybe they use a certain type of scale to measure the mass. no i do not think there would be a scale big enough to meaure the mass of the planet, but i think there would be a type of scale that you could maybe put on the planet and it would sort of detect the mass of it.
  
  
  veronica szymczak ☺☻

  10/20/2009 6:24:50 PM
• joe grasseschi

  1.) Scientists are excited to find low mass planets because they might have earth like situations with extraterrestrial life on them.
  
  2.) I think they are dicovering the mass of new planets they haven't been before by the spectograph that HARPS uses because it can detect alot of thing on or about the planet.
  
  3.) They can calculate it with the spectograph.

  10/20/2009 6:30:41 PM
• Matt Gates

  1. Low mass planets are more likely to sustain
  life.
  2. I think that they just look at it and try to figure out what the mass is by looking at it.
  Matt
  3. if they were on the planet they could mabye measure the circumfrence and find out that way
  
  

  10/20/2009 6:31:36 PM
• nick george

  1.because it is earthlike sizes and it is considerdto be the best canidates in search for life.
  
  2.with a spectrograph
  
  
  3.using a spectrograph

  10/20/2009 6:42:36 PM
• Shaynan Beando :)

  Mass
  
  1.I think that "low-mass" planets excite scientists because low-mass most likely means earthlike sizes.There is also possible extraterrestrial life forms.
  
  2.I think that they are finding the mass of planets that they haven't been to by making models and preddicting the mass of new planets.
  
  3.I think that they could find the mass of the planet if they were there by using mathematics to figure out a part of the planet and to use that info. to find out the mass of the whole planet.
  
  I don't think there would be a scale big enogh to wiegh an entire planet, but everything is possible!!!
  
  -Shaynan

  10/20/2009 6:45:38 PM
• Faith Malone

  Scientists excited to find low-mass planets because it maens that there are more earth sized, that means there is a liklier to find life.
  I think that they just saw the size of the planets, then compared it to earth to see the how much mass the planet has.
  I think that even if they did visit the planet they probally chould not find the whole mass of the planet they could only find the mass of a little peace. there is not a scale big enough to figure the mass of a planet.
  -Faith Malone

  10/20/2009 6:51:49 PM
• Madisen Morris

  (1).Scientists are excited when they find a low-mass planet because it is more likely to have extraterrestrial life.
  (2).I think scientists find the mass of a planet they have never been on by compiaring it to the earth.
  (3).Scientists probably find the mass of a planet by its gravity.
  
  
  Madisen Morris :-)

  10/20/2009 7:06:10 PM
• danny litchfield

  they are exicted because it is the best candidate for life.I think they just estimate the mass

  10/20/2009 7:07:49 PM
• jordan landry

  1: scientists are excited to find low mass on other planets because sice they are earth size they are good canidates for extraterestrial life.
  2: i think they can calculate the mass by finding like an estimated or average volume and taking other i nformation and forming an estimated mass.
  3: there is not a scale big enough and they could calculate the mass by finding the mass of an area and and finding how many of those 'areas' will fit in the whole planet and multipling it by the area mass.

  10/20/2009 7:11:16 PM
• Amie Tuttle

  1:Scientists are excited to find low-mass planets because low-mass planets are the best candidates for extratrerrestrail life.
  2:Scientist found out the mass of planets without going to them by knowing the size of that planet. Then they could compare that planet the other planets like Saturn, Earth, For example if the planet was 5 times bigger than Earth it would 5 times the mass of Earth.
  3:Scientist can calculate the mass of planets by finding the volume of the planet and the density and dividing them to get the mass... mabye.
  
  Amie

  10/20/2009 7:12:39 PM
• Ben Quiry

  1) Because, if it has the mass of the earth then that means that life may be able to be livable.
  2)Because the scientist look fod dwarf stars and dwarf stars have low masses. So if the dwarf stars have low mass, then the sorrounding planets are low mass.
  3)Because scientist use a High Accuracy Radial velocity Planetary Searcher (HARPS)
  

  10/20/2009 7:14:19 PM
• Rachel Pray

  1)Scientists are excited with the low- mass planets because they could possibly hold extraterrestrial life, and that can be proved by looking at earth, because its a low- mass planet that holds us, but in in an alien's point of view, extraterrestrial life. If scientists figure out if there's extraterrestrial life on the other planets that can encourge us to welcome or demolish them for our own safety.
  2)Scientists are measuring mass on the distant planets by using a intricate scientific device called a spectographer, which detects and measures the amount of wobbles on a planet by choosing a specific star that is affected by the wobbles. Scientists usually choose low- mass stars like something similar in mass to our sun, or a lower- mass small red dwarf star. Also, if you want to run into all four criminals, scientists have a theory that states planets are formed by areas in which there high mass; thats what their core is mostly made out of' while the spectograph has clearly measured planets in low-mass, low- metal areas. They now are uncovering why this can occur- throughout this invesigation scientists have learned more about how metal impacts masses, not just mass.
  3)Even if you did go to the planet, it would be difficult to find the mass, but a main component to use would be math, and yes, with math you can calulate the mass of an entire planet. You can do this by getting an even fraction, or percentage of the planet, and since planets that I know of are round, you could roughly split it up into quaters, and use the spectograph and the sun (because scients use a low- mass stars to help them, and they mentioned "selcts stars imilar to the sun..." to figure out the mass of each quarter, then add them all together. Or you also measure the earth as one whole to check your sum, and if the spectograph doesn't measure people or objects (like a couch, keys) you would calculate the average weight (mass) of a person and average weight of a common object, and add that in with your previous sum. And yes, there is a scale big enough to measure an entire planet: a spectogrph!
  Patting All Four Cats Around the Clock,
  Rachel Pray

  10/20/2009 7:27:58 PM
• Jake Nichols

  1. because if the mass was to high there would be a good chance it would not have life.
  2. they used a machine called a HARPS to figure out the mass of the planets.
  3.like I said before they used the HARPS witch seaches for wobbles in the near by stars

  10/20/2009 7:33:35 PM
• Alison Coye

  Hello,
  
  Based on the article that I read and on my prior knowledge about the solor system, I can answer the following questions:
  
  1. Why are scientists excited to find "low-mass" planets?
  
  2. How do you think scientists are discovering the mass of a planet that they never visited?
  
  3. How would they calculate the mass of a planet that they have visited?
  
  Scientists are excited to find "low-mass" planets because they are "the best candidates in the search for extraterrestrail life." I think that a scientist can find the mass of a planet that they never visited by looking at it's gravity. Scientists could look at the orbit of the planet and study it's gravity to determine what the planet's mass might be. However, if you were trying to find out the mass of a planet that you have visited, you could compare that planet with other planets. For example: if you found a planet that was really big and it was eight times bigger than Mars, you could comapre the two planets in size to find out the mass. It would probably be the easiest way to calculate the volume because most scientists who study the solar system already have the masses of other planets in our solor system. But in future generations, scientists could invent a prob that they would send out to space and it would go around the planet and calculate the mass of the planet. That would make it a lot easier for scientists to study the mass of planets. Thank you for listening!
  
  Happy Blogging Everyone Until Next Time,
  Alison Coye
  
  ***SHOUT OUT OT YOU MR. STARK!!!! I like your last sentence in your directions, "Just get your head out of the clouds and into the stars! That would make a good quote!***

  10/20/2009 7:46:50 PM
• erin cooney

  in question 1, low mass planets get scientists exited because those planets may have extraterrestrial life.in question 2,to measure the mass of an earth size planet i think you should use the harp system to measurethe mass. in question 3,i think to calculate the mass you should use egsisting planets (earth and jupiter) as models.

  10/20/2009 8:16:30 PM
• tim lange

  the sceintists are excited to find low mass planets because it means they could be more earth like.they find out the mass by models.not yet but they just need the next genreation of equitment

  10/20/2009 8:34:37 PM
• matt mcglynn

  2 they use a HARPS to measure the mass from a great distance
  
  3 they probally estimate the mass and volume based on what they know about other planets

  10/20/2009 8:59:26 PM
• Jack Blair

  1)Scientists are excited to find low-mass planets because they are closer to the mass of the earth and could support extraterrestrial life.
  2)I think scientists could calculate the mass of a planet they have never been on by looking at a planet they already know the mass of and look at the planet the want to know the mass of. Then they could see if the planet they want to know the mass of is close to the size of the planet the already know thew mass of.
  3)If you were on the planet, you could look at all of the materials in and on the planet. Then you could calculate the weight of all of the substances.
  
  Hope it's good!
  -Jack

  10/21/2009 6:02:20 AM
• Luke Schiemann

  1.scientists are excited to find the planets because they might support life.
  2. they could make a hypothesis
  

  10/21/2009 7:26:13 AM
• ryanwiiikka

  1.scieists/are/excided/becase/some/of/he/planets/have/he/same/mass/as/earth/so/evenaly/people/mi-ght/be/able/o/live/there.2.the/sceientists/could/esamate/the/mass/according/to/other/planets.3./they/don'/have/a/big/enogh/scale/qite/yet/measer/it.
  i'm/sorry/for/he/slashes/but/the/computer/i'm/on/is/broken/so/the/space/bar/doesn't/work.
  ryan

  10/21/2009 7:55:34 AM
• maddie green

  hi everyone! i have strep throat but i won't let my class get a 0 on the chart because of that!
  1) i think that scientists are excited about "low mass planets" because in the article it said that the planets could poss ibly have extra terrstiral life on them.
  2) i think that scientists found the mass of a planet by looking at the size of tyhe planet, but there is probablly another way because my gusse could be completley wrong because just because something is smaller than something else does not mean that thing is less dense therefore that means that if it is not less dense it is probablly heavier than the other planet.
  3) i agree with amie Tuttle for this one even if she does not think it is correct i thi9nk it is because I believe that if you divide volume to density than you would be able to find the mass. Great job everybody!!!!
  

  10/21/2009 8:31:36 AM
• maddie green

  i do not know if you got my comment but hopefully you did tell me when i get back to school and do not have strep thraot any more.

  10/21/2009 8:34:31 AM
• luke schiemann

  2. they use a HARPS to identify the size.
  3.they will have a device later to measure accuratly

  10/21/2009 1:14:28 PM
• madison talbert

  1)scientists are excitd about low-mass planets because it means that they are more likely to support life
  2)they could compare the size of the planets in our solar system to the size of the newly discovered planets.if a planet is 8 times as large as jupiter, they would fugure out the mass of eight jupiters and come up with the answer
  3)i dont really think that there IS a way that they could calculate the mass when they visit the planet.im just not sure how they would do it

  10/21/2009 1:25:21 PM
• sean stlaurent

  1,scientists are exited to find low mass planets becase they are more like earth
  
  i will finish latter

  10/21/2009 1:27:27 PM
• sean stlaurent

  i do not know how they mesure mass of a planet they have never been on

  10/21/2009 1:30:21 PM
• sean stlaurent

  they would need a next generation of radio volocity machine to do that

  10/21/2009 1:34:25 PM
• Brian Bartlett

  1) Scientists are excited about finding low mass planets because it is easier to detect things on them that it is hard to detect on high mass planets.
  2) I think they measure density by sending sattelites to the planets or they get scaled sattelite images and they use the shape and size to calculate the volume and then they get a piece of the ground or dirt or figure out what it is made of. Then they what its mass is and calculate how many of those pieces fit into the planet then divide volume by the mass.
  3) I do not know if there is a special scale that they use but maybe they they do what I said before. They get the weight of a small piece of land and calculate how many times that piece of land can fit into the planet and multiply the weight of the piece of land and multiply it by how many times the piece of land can fit into the planet to get the mass.
  Sorry I forgot.
  
  Brian Bartlett

  10/21/2009 1:39:10 PM
• Quentin Brock

  1.I think scientists get exited when they find low-mass planits because they look earth like in size. They hipothisize on the size.
  
  2.You would hafto couculat the volume. conpare it to Earth
  
  3.Maby if you couculate the waght of some of the substances on the lanit and add.

  10/21/2009 1:39:16 PM
• kyle calcia

  1)There excited because Low density means better chance of life on that planet .
  2)I think they found earths mass and compared it to each planet .
  3)I think they would first find the volume then the density and finally divide the two .

  10/21/2009 5:30:43 PM
• shannon smith

  1.There excited because low mass planets have a bigger posibility to have life on them
  2:Useing a scale system. So they made a system when a sertain amound of lenght means a mile or somthing like that
  3:NO WAY. One if there could be a scale great but if we biult it it would not fit on our planet.

  10/21/2009 6:40:10 PM
• Emelie Watson

  i thought that was very good amie and you answered the questions using good complete sentences.

  10/26/2009 5:55:42 PM
• Emelie Watson

  i think you know mass very well and youve learned a good portion about it.

  10/26/2009 5:59:02 PM