NOVA scienceNOW | Detecting Life | PBS

http://www.pbs.org/nova/sciencenow/detectinglife Once we find a planet that has Earth-like potential, how can we tell if there is life on it? Harvard astrophysicist Lisa Kaltenegger explains how scientists might sniff out life by looking at the planet’s atmosphere. Learn more at http://pbs.org/nova/sciencenow/detectinglife

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Science & Technology

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• science
• NOVA
• PBS
• scienceNOW
• space
• stars
• planets
• Lisa
• Kaltenegger
• aliens
• ET
• life
• exobiology
• astronomy

[Barabit017]

and with your civilian mindset i would understand how mis informed you really are... look up operation GENESIS

[TheHigherVoltage]

@Barabit017 I think you've spent too much time near the microwave :/

[Barabit017]

@TheHigherVoltage certain events will unfold within this time period if you study or even listen to steven hawkings will somewhat understand what events will be happening..

[MrAnalpfropfen]

Hope they launch Terrestrial Planet Finder before 2015

[omgbaby123]

@Zurround100 because our planet is the only example of life to compare to

[CommanderC4]

@Zurround100 It doesn't HAVE to be Earthlike, however it is likely that life on Earth would show us some basic fundamental necessities of life elsewhere. It is more technically correct to use the term "habitable" but a planet being "Earthlike" would indicate that the same kind of life that we KNOW happens here could just as easily there as well. Just going off of the little information that we do for certain.

[Zurround100]

Earthlike my foot why the hell do we have to assume that other planets have to be similar to ours to have life?

[Authilus]

@SMALE15

Well, we know for a fact that there is at least one. Are we not proof of ourselves?

[SMALE15]

there has to be at least one planet that has living things on it! the universe is a very very very very very very very very big place

[TheMadnessZombie]

if you think there isn't any other life in your galaxy you are so wrong wrong wrong