There are no confirmed exomoons, moons orbiting distant exoplanets in other solar systems. There are a few candidates, but none have passed the threshold and been accepted as confirmed. But they must ...

Roughly four and a half billion years ago the planet Theia slammed into Earth, destroying Theia, melting large fractions of ...

The outer planets of the solar system are swarmed by ice-wrapped moons. Some of these, such as Saturn's moon Enceladus, are ...

What can white dwarf stars eating their own planets teach astronomers about planetary and solar system formation and evolution? This is what a recent study published in The Astrophysical Journal hopes ...

Parker Solar Probe Makes History by Touching the Sun 8 million miles above the Sun's surface on December 24, 2024, traveling ...

Pluto's largest moon, Charon, likely formed through a capture event in the early, crowded Kuiper Belt. Three-body encounters ...

Moon’s precursor planet, Theia, disappeared billions ago, leaving scientists no direct chemical evidence to support the ...

"The Pluto flyby happened, and I was in the right place at the right time - perfectly positioned to fall in love with it," ...

Can planets orbiting M dwarf stars become habitable, or does the star’s activity prevent it? This is what a recent study ...

Is a sun a star or a planet? While science now agrees the sun is a star, new telescopes may soon challenge how we define solar objects.

A Star Trek–inspired idea by Miguel Alcubierre kicked off decades of theory and experiments as scientists pursue plausible ...

In 1999, Belgian physicist Chris Van Den Broeck implemented a minor alteration to Alcubierre’s concept by shrinking the ...