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

The Milky Way galaxy, comprised of billions of stars, will be visible in the night sky until the end of May, particularly between the last quarter moon (May 20) and the new moon (May 30). Light ...

NASA is preparing to turn the center of our own galaxy into a precision test bed, using the Nancy Grace Roman Space Telescope to build the most detailed infrared map of the Milky Way ever attempted.

New simulations of Milky Way-like galaxies reveal that the strange split between two chemically distinct groups of stars may arise from several very different evolutionary events. Bursts of star ...

“Tololo Lunar Eclipse Sky.” Cerro Tololo Observatory, Chile. On March 14, 2025, a total lunar eclipse occurred, especially visible over the Americas and the Pacific Ocean. I was fortunate to observe ...