Scientists believe a dust-filled ring just outside Jupiter acted like a cosmic “planetesimal factory,” producing multiple generations of early space rocks with very different compositions. The ...

Scientists have discovered a bizarre planetary system where a rocky world orbits farther out than giant gas planets, defying ...

Mars holds a special place in the solar system. It represents marginal habitability. This means it transitioned from warm and wet and potentially hospitable, to cold and dry and inhospitable.

Astronomers using the James Webb Space Telescope have uncovered surprising evidence about how enormous “super Jupiter” ...

In the young Solar System, a dust trap beyond Jupiter may have built wildly different meteorite parent bodies over two ...

To be a planet, NASA says an object must be big enough that its gravity has cleared away any other objects of a similar size near its orbit around the Sun. I can understand how something can clear ...

A new study suggests Mars could help scientists understand how alien worlds evolve by showing how a once warmer, wetter ...

Preliminary results of a study presented at the recent European Geosciences Union General Assembly in Vienna indicate that ...

An illustration of the James Webb Space Telescope as it orbits the sun in our solar system, 1 million miles from Earth. Credit: ASA GSFC / CIL / Adriana Manrique Gutierrez The James Webb Space ...

NASA’s Psyche spacecraft just used Mars as a giant slingshot on its journey to a mysterious metal world that could reveal what’s hidden inside planets like Earth.

Neptune’s third-largest moon, Nereid, could be an intact survivor from the planet’s original satellite system, upending ...

Looking for a sky event this week? Check out our full Sky This Week column. May 24: Egeria slides on by After reaching superior conjunction midmonth, Mercury is increasing in visibility and should be ...