Sunday, January 11, 2009

http://www.nytimes.com/2008/12/11/science/space/11planet.html?_r=1&ref=space

CARBON DIOXIDE (NO S.U.V.'s) DETECTED ON A DISTANT PLANET

Astronomers have found traces, around one part per million to 10 parts per million, of Carbon Dioxide on planet HD 189733b, 63 light years away, while attempting to search for extraterrestrial life. In reality, the planet is far too large and far to hot to support any life, but this discovery goes to prove the capabilities that scientists now have at their disposal. When HD 189733b passed directly in front of and behind its parent star as it orbited, astronomers were able to compare the near-infrared light from the star alone (when the planet was behind it) with the combined light from both using the Hubble Space Telescope. The difference between the two spectrums revealed the light emitted from the planet and the mix of colors in the planet's light contained the telltale signs of carbon dioxide. This discovery came as a big surprise since carbon would prefer to from Carbon monoxide or Methane given the stellar situation, but this discovery further draws the question over the possibility of life in the universe that surrounds us.  

8 comments:

noble c said...

1. He has good information
I liked the article
I didn't know how much CO2 was on other planets

2. He could have had a little more information
He could have told us a little more about CO2

3. I learned that they found things using the Hubble Space Telescope.

Anonymous said...

1. Very intersting topic
2. Good solid facts
3. Straight direct facts

1. Could of told us how it can support life
2. Any other evidence about life on far away planets

1. I learned that the traces of CO2 can show that there is future life

Lauren said...

3the articles was very interesting
The information was well stated
The article was well written

2 More information could have been used in the article
He could have talked mnore about the sigificance of finding carbon dioxide on another planet

1 I have laerned from this article that the Hubble space telescope is an important scientific technology that is significant in the studying space

Jessica said...

1. The information was well presented.
2. I was not aware of how much CO2 existed on other planets.
3. I like how he connected reality with what was said to be there.

1. More information regarding the CO2 could have been presented including information on how it is relevant to other planets.
2. His summary could've had more detailed information.

1. I learned about how the Hubble Space Telescope is used to find things that are very important to astronomy.

Luke said...

1. Very interesting topic
2. Had very solid facts
3. The article was well written

1. He could of talked more about CO2 can show life can be sustained
2. He could of related CO2 to our planet.

1. I learned that the traces of CO2 show traces of life

Ryan said...
This comment has been removed by a blog administrator.
William said...

3 Things Well Done:
1. The summary was concise and well written.
2. The article demonstrated an unconventional application of chemistry and connected chemistry to a topic of particular interest to me: astronomy.
3. The summary explained, simply, how the scientists were able to make the discovery.
2 Things Needing Improvement:
1. The summary did not explain the connection between the presence of carbon dioxide and life on a planet.
2. The summary did not include a mention of the location or the distance from earth of the planet - information which might be interesting to the reader.
1 Thing I Learned:
1. It was interesting to learn that the composition of a planet's atmosphere could be determined from so far away from simple telescope images.

Anonymous said...

1. interesting information
2. i wasnt aware of the amount and to what extent CO2 was used on other planets
3.simply explained

1. could have connected CO2 to our planet
2. could explain connection between life and CO2

1. it was interesting how the scientists learned so much information through a telescope