Charles Q. Choi

"Neutrinos are not a side detail in supernovas."

A mysterious giant 10-sided pattern of clouds has recently formed around Saturn's south pole, a new study finds.

"Even a bootprint or a rover's tread may create a habitable area."

A radiation-shielding vest aced its Artemis I lunar test in 2022, suggesting that it could protect astronauts on long-duration missions to the moon or Mars.

"We've had only a single flyby — Voyager 2 in 1989 — and these results make clear there's much more to learn."

Imagine if Star Wars' Tatooine twin suns went supernova. Scientists may have just found that in our universe.

The costs of space launch have fallen 96% in the past six decades and have the potential to plummet by nearly as much by 2040, a new study finds.

A huge geological structure on Mars resembling a bathtub ring may be evidence of an ocean that once covered a third of the Red Planet.

Lightning on Jupiter may pack more than 100 times the power of Earth's bolts, and may prove one million times stronger, a new study finds.

Our sun and a host of "solar twins" may have migrated away from the core of the Milky Way galaxy together long ago, potentially making the solar system more hospitable to life.

In the distant reaches of the solar system are many icy objects that resemble snowmen. Now, a new study reveals the simple way in which these mysterious objects might form.

Ancient shoreline features hint that water on Mars once formed a vast ocean.

"If they were purely made up of stars, they would be the densest galaxies in the universe."

Astronomers have detected a "free floating" rogue planet the size of Saturn drifting through the Milky Way some 10,000 light-years from Earth.

"We're not certain if having widespread liquid pockets instead of a global ocean makes Titan more or less habitable."

Small icy moons in the outer reaches of our solar system may hide boiling oceans underneath their surfaces, a new study finds.

Ancient explosive volcanic eruptions on Mars could help explain mysterious hints of buried ice from the Red Planet's equator, a new study finds.

Martian glaciers are mostly pure ice across the Red Planet, suggesting they might potentially be useful resources for any explorers that might land there one day, a new study finds.

Astronomers may have discovered a rare type of binary star system, where one star used to orbit inside its partner.

Extraordinarily powerful light from gamma-ray bursts might help produce heavy elements from the outer shells of dying stars.

The lunar canyons Vallis Schrödinger and Vallis Planck are extraordinarily deep, and scientists now know the valleys were carved by bullet-fast moon rocks.

The moon may have received a volcanic facelift, making it more than 100 million years older than rocks collected from its surface might suggest, a new study finds.

Saturn's rings might not be younger than the dinosaurs as recently suggested, but nearly as old as the giant planet itself at billions of years in age, a new study says.