Tag Archives: planets

Looking for Life: Enceladus and Gliese 1132 b

We haven’t found life on — or in — Enceladus. But we’ve found organic compounds in the Saturnian moon’s salt-water geysers. Scientists detected an atmosphere around Gliese 1132 b, a planet about 39 light-years away. It’s Earth-like, in terms of … Continue reading

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Mars: Leaky Red Planet

What we’re learning about Mars, and a new type of really small spacecraft, reminded me of earth, air and kilts. Also pharaohs, Thomas Paine, and Lord Kelvin. By then I was running out of time to write something more tightly-organized. … Continue reading

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TRAPPIST-1: Water? Life??

TRAPPIST-1’s planets may support life: or not. We don’t know. Not yet. We’re pretty sure that all seven are rocky worlds, like the Solar System’s inner planets. Three are in the star’s habitable zone. The inner two definitely do not … Continue reading

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Tides and Our Moon’s Origin

Scientists have been wondering how our moon formed, and why its orbit isn’t over Earth’s equator. It looks like our moon formed after something about the size of Mars hit Earth, roughly 4,500,000,000 years back. But the giant-impact hypothesis didn’t … Continue reading

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