Scientists recently have found a few rocky planets, including one last year just seven times the size of Earth, but all are very close to their stars and so extremely hot. The planetary discovery announced Wednesday and reported in today’s edition of the journal Nature is the smallest and coldest yet. —Ian Hoffman —‘Earth-like’ planets are plentiful (Tri-Valley Herald)
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Some 50 years ago, my father took me to his office in Washington, DC. I…
I first taught Wilson's Pittsburgh Cycle during an intensive 3-week online course during the 2020-21…