Tag Archives: astronomy

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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Science in 2017

It may not be an ‘official’ end-of-year custom, but many folks make lists as New Year approaches. BBC News made a list of eight “amazing science stories” of 2017. I can see how the stories are “amazing,” from their viewpoint, … Continue reading

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No More Sunspots?

Sunspots come and go in an 11-year cycle. Our sun has acted that way for centuries. With a few exceptions. The sunspot cycle changed about 23 years back. I think we’ll learn a great deal by studying what’s happening, but … 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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