Kilometre

The next year of science on the James Webb Space Telescope has been announced amid mounting budgetary uncertainty that could affect the unparalleled observatory

It's just a phase—literally.

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have detected oxygen in the most distant confirmed galaxy ever found, JADES-GS-z14-0.

Sensational "city killer" headlines aside, NASA and the European Space Agency reported the asteroid "has a very small chance" of Earth impact.

Earth is but a tiny light blue dot in this 30th anniversary version of the iconic "Pale Blue Dot" image. The original photo, taken by NASA's Voyager 1

This year, from Earth's perspective, Saturn's rings will appear nearly edge on, making them almost invisible

Twenty years ago, the Huygens probe achieved humanity's first landing on a moon in the outer solar system when it touched down on Titan.

A joint Japanese-European mission to Mercury just made its sixth flyby of the planet, revealing stunning close-ups of the permanently shadowed craters at Mercury's north pole.

Twenty years ago today a magnetar's epic tantrum made our planet ring like a bell from tens of thousands of light-years away

NASA's 2024 started with a crash that brought an abrupt end to one of its most remarkable missions of recent years.

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.

The team's detection method, which identified 138 space rocks ranging from bus- to stadium-sized, could aid in tracking potential asteroid impactors.

Over the past decade, NASA's NEOWISE mission contributed to planetary defense efforts with its research to catalog near-Earth objects.

Recent studies illuminate the secrets of Uranus' magnetic field and its oceanic moon, Miranda

Jupiter doesn't have a surface. It's a gas giant planet with a hostile interior. But if Jupiter didn't exist, life would probably not exist on Earth. The post Jupiter doesn't have a surface. How is that possible? first appeared on EarthSky.

NASA's Perseverance rover captured the silhouette of Phobos -- the larger and inner of the two natural satellites of Mars -- as it passed in front of the Sun on September 30, 2024, the 1,285th Martian day, or Sol, of the mission.

NASA's Webb Space Telescope has identified new clues about the surface of Pluto's...

Astronomers have spotted a massive pair of jets releasing material from a distant black hole. The jets are so large they span about 140 Milky Way galaxies in...

Astrononomers using the NASA/ESA/CSA James Webb Space Telescope have detected that GS-10578, a massive, quiescent galaxy at redshift of 3.064 (look-back time 11.7 billion years), is expelling large amounts of gas at speeds of about 1,000 km per second.

A stadium-sized asteroid is passing relatively close to Earth on Tuesday, NASA announced. Its distance from Earth and its massive size makes it a "potentially hazardous object."