Sharmila Kuthunur

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.'

A new water loss mechanism on Venus explains how the planet lost all its water, turning the planet from a potentially habitable world into the parched hellscape we know today.

Newfound rocks on Mars suggest the planet may have once sported an oxygen-rich atmosphere, making it more Earth-like and hospitable to life than previously thought.

An incredibly brief, ultrabright explosion has led astronomers to a newfound magnetic star outside the Milky Way, which could be the first of many extragalactic magnetars, according to new research.

A dog-like, bio-inspired robot called Spirit is still learning to walk, but could one day be deployed on the moon to explore steep, potentially hazardous areas with a team of robot companions.

Observations of Venus taken with the BepiColombo space probe show that our cosmic neighbor is leaking significant amounts of carbon and oxygen from its atmosphere, and researchers can't totally explain why.

Ripples in space-time point to the merger of a neutron star with another mystery object. The object, which falls right within the mass-gap range, sheds light on a long-sought, murky realm.

In a rare observation, scientists found a baby star "sneezing" gas, dust and magnetic energy out of its disk. This behavior could help solve a longstanding mystery about how stars form without tearing themselves apart.

Scientists using the Dark Energy Spectroscopic Instrument have unveiled the largest 3D map of the universe ever. The results suggest that dark energy, the mysterious force pulling the universe apart, may be weakening, challenging prevailing theories of cosmology.