Ghost Dunes of Mars
Echoes of ancient sand dunes on the Red Planet could hold clues to martian life
A bag of holding would involve extreme physics in interesting ways.
Computer simulations show at least some exoplanets have stable seasons
The interstellar asteroid Oumuamua could actually be a comet.
Humanity might be truly alone in the universe, and that could be our greatest gift.
- Astronomy - (19)
- History - (3)
- Life - (2)
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- Physics - (10)
- Science - (5)
- Thought - (3)
I’m a farm boy who became an astrophysicist. Along the way I’ve been a farmhand, father, programmer, husband, author, and professor. Sometimes I write things. When I do, you can usually find it here.
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