An international team of astronomers has discovered a distant planetary system that challenges long-standing theories of how ...

The planets are visible throughout February, "but they’ll be lined up best toward the end of the month,” NASA says.

The planets around a nearby star seem to be in the wrong order, hinting that they formed through a different mechanism than the familiar one by which most systems grow ...

According to NASA, at least one bright planet can be seen on most nights, depending on the weather.

Uranus and Neptune will also be on the scene, too dim to see with the naked eye.

6 planets will align in a 'planet parade' Saturday, Feb. 28, 2026, shortly after sunset. Here's which planets you might see and how to best view them.

A young star called V1298 Tau is giving astronomers a front-row seat to the birth of the galaxy’s most common planets. Four massive but extremely low-density worlds orbiting the star appear to be ...

With an estimated 6 sextillion kilograms of the stuff—that’s 21 zeroes by the way—the Earth’s core is another example of why hydrogen is the most abundant element in the universe.

If you're the kind who loves a nice sci-fi thriller that leaves you thinking at the end of it, here are the best sci-fi movie ...

Mercury puts on its best evening show of 2026 this February, with bright views after sunset and a helpful crescent moon.

As much as 45 oceans’ worth of hydrogen may be in Earth’s core, scientists reported, suggesting most of Earth’s water was acquired during the planet’s formation.

With picks across nearly 1,000 episodes, there is so much Star Trek to watch — and watch again. Here are our top 10 favorite ...