Earth As an Extrasolar Planet
sciencehabit writes "Astronomers have a theory that they can detect whether a planet light years away will be habitable by just looking at how its sun is reflected in its atmosphere. To test the idea, they pretended that they were observing Earth from a distant object — in this case, the moon. And sure enough, they picked up critical components for life in Earth's atmosphere: ozone, oxygen, sodium, and nitrogen."
NASA has finally proved that planet Earth is (still, at least) habitable! We knew that all that investment will bring us new knowledge some day.
Until the point that American Idol and Fox News is detected ;-)
Table-ized A.I.
It's natrium, you insensitive clod!
I for one welcome our new Earth overl-...... wait a second.....HEY, that's me!
soylentnews.org Go there to enjoy the people!
And besides, finding life that uses oxygen means we're more likely to find life similar to ours, so we can have sex with it.