I) Leo is a springtime constellation in the Northern Hemisphere. It lies south of the Big Dipper, the most recognized ...

A remnant of the Soviet Venus program, Kosmos 482 has stayed aloft in in Earth's orbit for 53 years. But it may make a return ...

Asteroid 9 Metis reaches opposition in the constellation Libra. The main-belt world is visible all night, and best positioned ...

A bright Moon dominates the sky, passing two bright stars as Juno reaches opposition and Mercury dips toward the horizon in ...

New views of TOI-421 b by JWST gives insight into how the most common type of planet in the galaxy might form.

Vesta’s classification has vexed astronomers for decades, but a recent study is forcing planetary scientists to reevaluate its internal structure.

This strange nebula, which sports a very long name, was discovered in 1977 and has changed dramatically over time.

The most recent measurement of a nearby galaxy cluster is deepening a disagreement about how fast the universe is expanding — ...

Today I want to talk about something beginning observers tend to overlook. It a process of the human eye called dark ...

The space-based observatory, launched at the end of March, released its first set of images, in which a cloud of dust ...

The Swan Nebula (M17) glides through the early-morning sky near the border that Sagittarius shares with Scutum and Serpens ...

NASA’s Chandra X-Ray Observatory helped diagnose the cause behind a large kink in a huge filament near the center of the ...