A huge geological structure on Mars resembling a bathtub ring may be evidence of an ocean that once covered a third of the Red Planet.
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The Artemis 2 astronauts captured a unique image of the moon’s “dark side” during their historic April 2026 flyby.
Our universe is full of mysteries, but few are as perplexing as the dark, tiny galaxies that hover around larger ones like the Milky Way.
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Scientists have used a synthetic universe to observe how the first galaxies evolved and grew. In fact, it is so close to the real thing that it’s tricking some astronomers.
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SpaceX will launch Europe’s life-hunting Rosalind Franklin rover toward Mars in 2028 — but not aboard the company’s Starship megarocket.
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The size of waves on alien worlds will depend as much on the characteristics of the liquid as well as the gravity.
Hubble images never fail to amaze.
The interstellar comet 3I/ATLAS changed significantly as it flew by the sun last fall, astronomers have discovered.
Things are gearing up in the development of the Giant Magellan Telescope in Chile, as its developers enter the final design phase before the project goes before Congress for funding.
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The star is escaping the Large Magellanic Cloud for the Milky Way.