Astronomy on MSN

How Gaia revealed the Milky Way

On Jan. 15, 2025, the Gaia spacecraft took its last image. Then the craft ran a final round of engineering tests, fired its ...
Morning Overview on MSN

3I/ATLAS reappears and immediately stuns astronomers

The interstellar comet 3I/ATLAS has swung back into view after passing behind the Sun, and its return is proving even ...