But it’s not just looks. Rocky composition, general size, orbital behaviors—a lot of those qualities can be the same on both ...

How do tidal forces shape a planet's orbital evolution, especially for those in the habitable zone? A recently submitted ...

These linkups happen when several planets appear to line up in the night sky at once. Such parades are fairly common, ...

Mark your calendar so you can catch Mercury, Venus, Jupiter, Saturn, Neptune and Uranus in the sky at the same time.

In recent years, JWST has revealed a fascinating class of never-before-seen objects, just hanging out in crowded, nebular ...

A new study published in The Astronomical Journal has revealed an astonishing possibility: free-floating planets, long ...

Prior to flybys, scientists used mathematical laws and observation to determine the characteristics of the planets.

Jupiter, Mercury, Neptune, Saturn, Uranus and Venus will be visible in the early morning skies over America from Sunday, Aug. 17, to Wednesday, Aug. 20. FOX 5's Liv Johnson reports.

Five planets are currently visible from Earth at the same time, in what’s known as a planet parade – or a planetary alignment ...

Chemosynthetic life communities in the Northwest Pacific could offer glimpse of what life might look like on other planets ...

NASA’s James Webb Space Telescope finds TRAPPIST-1 d lacks an Earth-like atmosphere, narrowing the search for habitable planets.