Space

A tiny white dwarf star, surrounded by a swirl of material, is siphoning more material from a nearby fiery-looking red giant star in this illustration.

A stellar explosion may create a temporary new star this summer

Streaks around the galaxy cluster Abell 370 reveal more distant galaxies whose light has been bent and distorted by an effect called gravitational lensing.

Strange observations of galaxies challenge ideas about dark matter

Dune-inspired spacesuit

A Dune-inspired spacesuit turns astronaut pee into drinking water

Earth ocean

Sulfur was key to the first water on Earth

An image of a rock on Mars taken by the NASA rover Perseverance. Rocky white stripes flank a clay-colored area that is speckled with dark spots.

NASA's Perseverance finds its first possible hint of ancient Mars life

A photo of Earth taken by a NASA spacecraft in orbit around the moon

Scientists want to send endangered species to the moon

Some meteors leave trails lasting up to an hour. Now we may know why

Some meteors leave trails lasting up to an hour. Now we may know why

digital art of an unexplained anomalous phenomena (UAP)

Scientists are getting serious about UFOs. Here's why

A piece of paper with strings of numbers and letters printed on it, with one line circled in red pen and "Wow!" written in that same pen in the margin

The historic Wow! signal may finally have a source. Sorry, it's not aliens

A bright concentration of stars on a dark sky.

The nearest midsized black hole might instead be a horde of lightweights

image of galaxy NGC 4151

We may finally know the source of the mysterious high-energy neutrinos

Thousands of multicolored points of light fill an image of a star cluster

A medium-mass black hole has been spotted for the first time in our galaxy

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