This faraway, ancient ball of stars may have been captured from another galaxy that passed too close to the Milky Way.

Earth and Mars are constantly moving, but don’t stay a constant distance apart. Plus, spacecraft don’t travel in a straight line to their destination.

The bright star Sirius dominates the southern sky late this evening, blazing high in the south around 10 P.M. local time. You can use this sparkling star to point your way to the open cluster M47 in ...

A newly discovered comet has astronomers excited, with the potential to be a spectacular sight in early April. C/2026 A1 (MAPS) was spotted by a team of four amateur astronomers with a remotely ...

Last Quarter Moon occurs at 7:43 A.M. EST on Monday, February 9. This phase is best viewed in the early-morning hours; early risers can catch it before dawn, and our satellite remains visible in the ...

A 12-ton rocket loaded with a 1-ton warhead, the V-2 ’s successful launch would prove to be exceptionally significant to both the military and to space exploration. On Oct. 3, 1942, the V-2 was fired ...

Our universe is filled with particles, such as electrons and protons, which make up all the stuff on our planet and beyond: animals, plants, people, planets, asteroids, stars, gas clouds, and galaxies ...

When NASA’s OSIRIS-REx mission brought back samples from asteroid 101955 Bennu, researchers found that they contained amino acids, the building blocks necessary for life. Amino acids are the molecules ...

On Tuesday, February 17, an annular eclipse of the Sun will occur. Here’s the catch, though: It will only be visible as annular along a thin line in Antarctica. From the southern tips of Chile and ...

Psyche appears to be an iron core, or part of one, produced during the history of collisions experienced by a fairly large asteroid with other large asteroids. The collision or collisions were likely ...