Sharmila Kuthunur

Earth may have had a Saturn-like ring system long ago, created from the debris of a passing asteroid that our planet tore apart.

The most comprehensive map of clouds on Mars includes a variety of cloud patterns, including some that are unlike anything seen on Earth.

A NASA satellite designed to search for the universe's most powerful and violent explosions has successfully scouted its first burst, space agency officials announced earlier this week.

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

The European Space Agency's Salsa satellite safely deorbited on Sunday (Sept. 8) over a hand-picked region of the South Pacific Ocean.

China has moved the launch of its Tianwen 3 Mars sample return mission up two years, to 2028. The new timeline suggests China could get Mars samples to Earth as soon as 2031.

NASA's New Horizons spacecraft, which flew by Pluto in 2015, has offered the best-yet estimates of how dark deep space truly is.

SpaceX's trailblazing Polaris Dawn mission will make a daring trek into Earth orbit, one that will ferry the crew through belts of radiation wrapped around our planet.

James Webb Space Telescope finds clues about a pair of faraway, interacting galaxies that trace a distinct question mark in deep space.

Energy-packed plasma waves pump enough energy into streams of solar wind to propel them to their unexpectedly high speeds, observations by two sun-studying spacecraft suggest.

A colossal asteroid slammed into Jupiter's largest moon Ganymede with so much power it dramatically and permanently reoriented the moon roughly 4 billion years ago, new research suggests.

A long-sought invisible electrical field wrapped around Earth has been detected more than half a century after it was first predicted to exist.

A network of citizen scientists recently found a "warm" Jupiter 300 light-years from Earth that can reveal clues about how our own Jupiter and solar system evolved.

The twin ESCAPADE satellites have arrived in Florida for the highly anticipated inaugural flight of Blue Origin's New Glenn megarocket in October.

The recently launched satellite has been watching the spread of aerosols from wildfire smoke, creating a catalog that scientists say would eventually benefit weather forecasting.

Cities around the world are now growing upward more than outward, an analysis of three decades of satellite data has found.

A new simulation suggests the possible head-on collision of our Milky Way galaxy with the neighboring Andromeda galaxy comes down to a coin flip.

A look back at how NASA nailed the landing of its Curiosity Mars rover in August 2012, and what that success meant for Red Planet exploration.

NOAA satellites in orbit have recorded real-time views of Hurricane Ernesto as it made landfall in Bermuda before sailing through the Atlantic.

Telescopes caught a glimpse of Europe's JUICE probe as it swings by Earth and the moon for a gravitational assist on its way to explore Jupiter's icy moons.

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.

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

Auroras on Earth occur when storms from our sun engulf our planet. In a rare cosmic feat last April, our planet returned the favor.

Satellite images have revealed the true extent of damage left in the wake of Greece's worst wildfire this year.

With prolonged space missions on the horizon, scientists are racing to understand how microgravity affects the human body and how drugs could mitigate some of those effects.