Briley Lewis

Mercury takes only 88 Earth days to orbit the sun.

The moon is a round, rocky body, but is it a planet? The answer, scientists say, is complicated.

How old is Earth? Our planet's age is known from a variety of sources, from rocks on our own planet to ones from the moon.

Bright spots that appear and vanish on Saturn's moon Titan have a seemingly simple explanation — they're floating chunks of frozen organic material.

Salty glaciers discovered in craters near Mercury's north pole may have the right conditions for extreme forms of life, new research suggests.

No one knows what causes lunar swirls, but new evidence shows they may be tied to certain elevations on the moon's surface.

Several exoplanets at the edge of our galaxy could have formed continents — and advanced life — 5 billion years earlier than Earth, new research suggests.

Kiladze Caldera, formerly called Kiladze crater, may be a supervolcano that erupted fairly recently, spewing ice across the surface of Pluto.

See Mars' geology up close, thanks to decades of stunning images from the Mars Express satellite, in a new visualization of Noctis Labyrinthus, the 'Labyrinth of Night'.

New James Webb Space Telescope observations might be able to explain why clusters of young stars keep turning up near the Milky Way’s central black hole.

The smallest planet in our solar system is getting smaller as heat escapes its core and fresh cracks open on its surface, new research finds.

Calculating the way three things orbit each other is notoriously tricky — but a new study may reveal 12,000 new ways to make it work.

Almost every galaxy in the universe has a supermassive black hole at its center. So why is it so hard to find young black holes actively feeding?

Astronomers studied the remains of a massive star ripped apart by a black hole in an epic astro-forensic murder investigation.

An infant star system contains the basic building block for organic chemistry, new James Webb Space Telescope images reveal.

SN 2023ixf is the closest supernova to Earth in more than a decade — and the perfect excuse for intelligent aliens to get our attention, new SETI research suggests.

Astronomers have confirmed the presence of phosphates — a crucial ingredient for life — in a plume of icy water gushing out of Saturn's moon Enceladus.

New simulations show that dying stars release enormous "cocoons" of gas that may rattle with space-time ripples called gravitational waves.

A new analysis of Kepler data shows that one-third of small stars called M dwarfs may have the potential to host life.

Light is faster than anything else in the known universe, though its speed can change depending on what it's passing through.

Space, outer space, and deep space — which is further out, and which is the real final frontier?

The James Webb Space Telescope took its first close look at a "mini-Neptune" — the most common type of planet beyond our solar system — and found signs of water.

Astronomers comparing maps of the universe uncovered the nearest example of a black hole devouring a star ever detected.

A satellite from the United Arab Emirates revealed that Mars' moon Deimos is made of the same material as the Red Planet itself, hinting at an ancient collision.