Sharmila Kuthunur

The innermost Earth-like planet in the famous TRAPPIST-1 system might be capable of supporting a thick atmosphere after all, according to new research.

On Christmas Eve, NASA's Parker Solar Probe flew closer to the sun than any human-made object ever — a stunning technological feat that scientists liken to the historic Apollo moon landing in 1969. Now, we know it survived.

A display of auroras is expected to light up the skies on Christmas Day, thanks to a powerful M8.9 solar flare enroute to Earth.

Astronomers have discovered a pair of young stars near the supermassive black hole at the heart of our galaxy. Studying them can offer a rare glimpse into how stars can endure — at least briefly — the immense gravity exerted by such cosmic behemoths.

The odd atmosphere of a fledgling exoplanet is causing astronomers to question leading theories of how planets form.

Astronomers analyzing archival images from JWST have discovered an unexpectedly vast population of the smallest asteroids ever seen in the asteroid belt between Mars and Jupiter.

Data from China's Zhurong rover has revealed what appears to be an ancient shoreline streaking through Mars' northern hemisphere.

Fast radio bursts — powerful and poorly understood cosmic eruptions — tend to occur in massive galaxies that host long-dead stars known as magnetars, a new study suggests.

A new species of tardigrades with thousands of genes that become more active when exposed to radiation could help in devising better protection for astronauts on long missions.

A fresh analysis of decades-old X-ray black hole jet data has revealed bright, lumpy features with mysterious speed changes.

India is eyeing a 2028 launch for its Chandrayaan-4 moon sample-return mission, followed by an uncrewed lunar lander and rover in collaboration with Japan.

A rare nova explosion will soon bring a "new star" to the night sky, and scientists are excited.

Astronomers have gotten the first-ever detailed views of turbulent activity on a star other than our own sun.

The source of a supposed alien broadcast that made researchers go "Wow!" may instead have been the result of a remarkably rare cosmic event, a new study suggests.

Scientists are trying to decipher what drove the recent dramatic cooling of the tropical Atlantic, but so far few clues have emerged. "We are still scratching our heads as to what's actually happening," the researchers said.

Astronomers have pinned down a faraway black hole's snack schedule after watching it devour a star across years.

Last year, Earth spewed charged particles into the sun in a rare cosmic event that has surprised scientists.

Scientists have uncovered the "genetic fingerprint" of the dinosaur-killing Chicxulub impactor, potentially revealing the fateful rock's origins in the outer reaches of our solar system.

NASA's Parker Solar Probe has found news clues in the longstanding mystery of why the sun's outer atmosphere, or corona, is so much hotter than our star's surface.

Saturn pumps into space varying amounts of heat based on its seasons, which drives planet-wide storms, data from NASA's Cassini mission has revealed.

Astronomers using the Large Binocular Telescope in Arizona have taken a close-up picture of Jupiter's volcanic moon Io that rivals similar photos taken from space.

The exoplanet WASP-107 b is one of the least dense planets ever discovered. New James Webb telescope observations may reveal how the mysterious world got so 'puffy'.

An Earth-size planet discovered around a nearby star offers astronomers their first chance for exoplanetary geology.

Scientists have discovered a bizarre, red-glowing exoplanet named TOI-6713.01, which is loaded with active volcanoes and may be 'melting from within.'