A NASA Hubble Space Telescope observation program called OPAL (Outer Planet Atmospheres Legacy) obtains long-term baseline observations of Jupiter, Saturn, Uranus, and Neptune in order to understand ...

Astronomers have finally weighed a wandering “rogue” planet, uncovering a Saturn-mass world flung into the galaxy after a ...

The distance and the mass of a free-floating planet were measured for the first time as astronomers speculated on the nature ...

Scientists measured mass and distance of free floating planet drifting through space without star for first time.

Scientists have discovered a rogue planet roaming the Milky Way after combining observations from Earth and a space telescope ...

Astronomers may have finally worked out how planets between the size of Earth and Neptune – which aren't found in our Solar ...

Astronomers have, for the first time, pinned down both the mass and distance of a planet that drifts through the galaxy ...

The space agency has learned a lot over 10 years observing the weather of our solar system's outer planets. When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

The observations expand the range of environments where habitable worlds might emerge. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Using the ...

Using gravitational microlensing, scientists have discovered a rare, large planet at the edge of the Milky Way. The planet is only the third to be found on the outskirts of our galaxy's dense central ...