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

This rare planetary alignment will be visible from August 10 but will be best viewed later in the month. Here’s everything ...

Six planets will be visible in our skies for the next few days in the last “planetary parade” of 2025. Jupiter, Mercury, ...

Alongside the planets will be the August 2025 full moon, called the sturgeon moon, which is expected to reach peak illumination on Saturday, Aug. 9, at 3:55 a.m. Eastern. To view the planets, it's ...

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

A planetary parade of six planets is visible in the morning sky through August 20, with Mercury joining Venus, Jupiter, ...

Free-floating, planetary-mass objects that are just drifting carefree through the galaxy, untethered and starless, appear to be able to generate their own systems of moons, like a planetary system on ...

But it’s not just looks. Rocky composition, general size, orbital behaviors—a lot of those qualities can be the same on both planets and moons. And on the flip side, they can be very different between ...

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

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

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

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