That's because we've been in blizzard conditions all day...Gfamily wrote: Mon Feb 23, 2026 12:27 am First day since June 2022 when there are no visible sunspots.
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Astronomy and Space
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dyqik
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Re: Astronomy and Space
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dyqik
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Re: Astronomy and Space
Our Minor Planet Center has announced the discovery of four more moons of Jupiter, bringing the total to 101.
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IvanV
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Re: Astronomy and Space
Many of them are very small. About half them are about 1km or 2km across. We have so far found rather more that are approx 2km than are approx 1km. But statistically there should be rather more in the 1km size range. And then many, many more in the hundreds of metres size range. And boulders and rocks and...dyqik wrote: Mon Mar 16, 2026 11:15 pm Our Minor Planet Center has announced the discovery of four more moons of Jupiter, bringing the total to 101.
I read there is no established minimum size for a moon. So where does it end? We finally realised it was silly to call Pluto a planet. Is it silly to have potentially millions of moons of Jupiter? Should we reserve the word moon for sufficiently significant objects? Where can we draw the line? Or doesn't it matter?
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dyqik
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Re: Astronomy and Space
High
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Brightonian
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dyqik
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Re: Astronomy and Space
YesBrightonian wrote: Sat Mar 28, 2026 8:33 pmAtacama Desert? https://en.wikipedia.org/wiki/Atacama_L ... eter_Array