The early solar system is still a bit of a mystery to scientists, but the secret to learning Jupiter's origins might be ...

Jupiter, the largest planet in the solar system, was 2 to 2.5 times bigger in its earlier life, according to new research. Jupiter, the largest planet orbiting the sun, used to be much bigger and ...

The rate of finding these distant worlds has recently increased, with astronomers scrambling to accommodate the data ...

Jupiter, long settled in its position as the fifth planet from our sun, was a rolling stone in its youth. Over the eons, the giant planet roamed toward the center of the solar system and back out ...

Is the future great planetary laboratory hurtling in our direction incognito, veiled in gloom and cold? That’s what astronomers think and have already begun to decipher its secret. Identified first by ...

Mysterious spherical droplets in meteorites aren’t just cosmic oddities. They’re evidence of planetary formation.

NASA spotted a new moon almost at the border of our solar system. Back in 1986, a theory came up that this cosmic body could ...

A planet 100 light-years away that resembles a young Jupiter has been discovered by an international team of astronomers that includes six UCLA scientists. The discovery is reported Aug. 13 in the ...

NASA unveiled a new discovery inside our solar system. We had only seen these big lakes filled with water on Earth - but this ...

I/ATLAS is a fast, ancient interstellar object. Its odd features fuel both scientific study and speculation. On July 1, astronomers detected a strange, fast-moving object racing toward the Sun. Named ...

Astronomers have discovered a brand new type of planet outside our solar system that, even in its infancy, is already bigger than Jupiter.