A group of astronomers has found a solar system 116 light-years from Earth that seems to challenge current theories about how ...

On Saturday, Mercury, Venus, Jupiter and Saturn will be visible to the naked eye if clear skies allow. Uranus and Neptune can ...

Timing is everything — NASA's planetary scientist said stargazers must try catching this celestial event before sunrise or right after sunset.

The Committee on Astrobiology and Planetary Science (CAPS) provides an independent, authoritative forum for identifying and discussing issues in astrobiology and planetary science with the research ...

Planetary systems such as our solar system take hundreds of millions of years to evolve. Since humanity has only existed for a sliver of that time, astronomers have only observed planetary systems at ...

She’s worried about the a-rock-alypse. A planetary defense expert is warning that humanity is defenseless against up to 15,000 undetected near-Earth asteroids that have the potential to take out a ...

For those who watch gravitational waves roll in from the universe, GW250114 is a big one. It's the clearest gravitational wave signal from a binary black hole merger to date, and it gives researchers ...

This amazing spectacle is created by a special alignment of the planets' orbits.