Earth's oceans are mysterious, largely unexplored places, but the enormous oceans of Neptune and Uranus have them beat.

"An epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a journey ...

In January 2025, Venus, Mars, Jupiter, Saturn, Uranus and Neptune were all visible in the night sky. And in February, 2025, ...

A planetary alignment happens when planets “line up” on the same side of the sun. The phenomenon is visible this month ...

Non-mixing layers of water and hydrocarbons thousands of miles deep could explain the icy planets’ strange magnetic fields.

Why the 'Planet Parade' will peak this weekend and look its best until 2036 as all seven other planets in the solar system ...

Saturn, Venus, Neptune, Uranus, Jupiter, Mars and Mercury will be visible in an uncommon planetary alignment this month.

Astrophysicists have been grappling with the question of how water arrived on our young planet for decades. One of the ...

On this day 35 years ago, NASA's Voyager 1 spacecraft took a picture that changed how we see our planet. The iconic "Pale ...

Feb. 18 marks the 95th anniversary of the discovery of our outermost planet-not-planet. Here's what to know about the short ...

Ahead of its dance with Saturn on Feb. 24, Mercury should be seen on Feb. 19 at magnitude -1.2 with binoculars 20 minutes ...

Scientists from Oxford University have confirmed the discovery of HD 20794 d, a “super-Earth” exoplanet located 20 ...