Tag Archives: extraterrestrial life

Oxygen, Alien Life

We haven’t found extraterrestrial life. But we’re still finding planets circling other stars. Thousands of them. Some of those planets couldn’t possibly support life as we know it. But some might. Atomic oxygen may be a good biosignature: evidence of … Continue reading

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Alien Life: Notions and Research

Scientists have been discussing alien life for some time: where it could be, what it might be like, and how we could find it. Quite a few non-scientists have been talking about the same thing. Some have pretty good grip … Continue reading

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Still Seeking Earth 2.0

We’ve known about 55 Cancri e since 2004. It may have lakes and rivers of lava. But that’s probably not what keeps its night side hot enough to melt copper. Ross 128 b, discovered this year, is a bit more … Continue reading

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Finding New Worlds

We could detect oxygen in Proxima Centauri b’s atmosphere. It’s a biosignature, but not proof of life. Some extrasolar planets are like Earth, almost. Many are unlike anything in the Solar System. I’ll be looking at recently-discovered worlds; some almost … Continue reading

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