Sharmila Kuthunur

In its search for answers to why our sun's corona is hotter than its surface, NASA's Parker Solar Probe has ruled out one explanation.

A new AI-powered algorithm has discovered over 300 polluted white dwarfs in the Milky Way that were overlooked in old telescope data.

SpaceX Starlink satellites designed to connect directly to smartphones shine nearly five times brighter than traditional Starlinks, a recent study found.

NOAA satellites in orbit have recorded nearly real-time views of Hurricane Debby as it makes landfall in Florida on Aug. 5, 2024.

Perseverance science team member Amy Williams discusses the rover's recent discovery of a rock with features and chemistry that could have been produced by ancient microbial life on Mars.

A new Hubble Telescope image shines a spotlight on a classic spiral galaxy named NGC 3430.

A new study reveals waves of magnetism within the sun could help explain why the sun's outer atmosphere, the corona, is hundreds of times hotter than its surface.

To celebrate the 25th anniversary of the flagship Chandra X-ray observatory, NASA released a behind-the-scenes look at the work it takes to keep the $1.5 billion telescope flying in space.

Europe's JUICE Jupiter spacecraft will swing past Earth on Aug. 20, and some skywatchers in Southeast Asia and the Pacific Ocean region may be able to see it.

NASA's Perseverance rover stumbled upon a Mars rock. It seems to suggest evidence of ancient life on the Red Planet.

To celebrate the 25th anniversary of the flagship Chandra X-ray observatory, NASA has released 25 never-before-seen images of iconic astronomical objects.

Comet 13P/Olbers approached close to Earth on July 20. It was last seen from Earth in 1956.

The first robotic Argonaut moon landing mission is targeted for 2031, the European Space Agency noted in a document published last week.

NASA's Curiosity rover discovered a rare element on Mars after it drove over a rock and cracked it open.

As we celebrate Space.com's 25th anniversary, take a look back at the greatest discoveries in astronomy in the past 25 years.

A newly proposed mass-based definition of a planet reaffirms Pluto as a dwarf planet.

A new computer simulation flies through tangled galaxies and zooms in on a black hole to dissect how these voids feats on surrounding matter.

A new thought experiment reveals how greenhouse gases can be used as a technosignature in the hunt for aliens.

Hurricane Beryl made landfall on Monday (July 1) morning, setting the record of strongest hurricane to happen this early in the year.

NASA's long-running Mars Odyssey orbiter celebrated its 100,000th orbit with a fresh view of Olympus Mons, the largest volcano in the solar system.

"It's a fun day."

India completed a series of tests for autonomously landing its fully reusable launch vehicle, marking another milestone in the country's pursuit of low cost access to space.

A neighbor galaxy of the Milky Way could offer fresh clues in the 90-year-long quest to determine the nature of dark matter.

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 have, for the first time, spotted a black hole in a nearby galaxy waking up from a deep slumber.