NASA 's James Webb Space Telescope has revealed that an exceptionally rare star duo in the Milky Way has a third companion — ...

An interstellar trespasser known as 3I/ATLAS is almost certainly a comet. So, why do so many people think it's ...

The latest images of an interstellar comet shared by NASA have captured how an array of spacecraft witnessed a flyby that was ...

With the government reopened, the space agency at last released pictures captured by a fleet of government spacecraft of an ...

When one thinks of astronomy, it’s easy to imagine equations on a chalkboard, late nights in physics labs or telescopes aimed ...

Comet 3I/ATLAS was discovered on July 1 by the NASA-funded Asteroid Terrestrial-impact Last Alert System (ATLAS) observatory.

Astronomers recently detected a stray quasi-moon in our planet’s orbit, but it's hardly the first stowaway to hang out around ...

Tonight, skywatchers are in for a rare and spectacular treat as the Moon and Jupiter align in the night sky. Whether you’re ...

Amazing views of Jupiter over the years via the Hubble Space Telescope. The moons of Io, Ganymede and hazy Uranus can be ...

Trapped in a gravitational push and pull between Jupiter and other Jovian moons, Io is constantly being stretched and compressed. Heat generated by these contortions has melted pockets of the moon's ...