Space
- Space
A near-Earth asteroid offers clues to one dark matter theory
Data from the OSIRIS-REx mission to Bennu place a ceiling on the strength of a hypothetical fifth force that could explain dark matter’s origins.
- Space
JWST spots the first known ‘steam world’
Astronomers have found a world shrouded in an atmosphere of water vapor, orbiting a star 100 light-years away.
- Planetary Science
The cataclysmic origins of most of Earth’s meteorites have been found
Just a few smashups in the asteroid belt may account for 70 percent of Earth’s meteorites, limiting what’s known about our solar system’s history.
- Planetary Science
NASA’s Europa mission is a homecoming for one planetary astronomer
Over her long career, Bonnie Buratti has seen the search for life in the solar system go from a joke to a flagship mission.
- Planetary Science
Saturn’s first Trojan asteroid has finally been discovered
Saturn joins the sun’s other giant planets that have Trojans, space rocks that orbit along the same path.
- Astronomy
Runaway stars could influence the cosmos far past their home galaxies
Dozens of stars fleeing a neighbor of the Milky Way suggest these escapees could have an outsized influence on their cosmic surroundings.
- Planetary Science
Europa Clipper has launched to solve an alien mystery
Launched October 14, the spacecraft will repeatedly buzz Europa in search of water, energy and organic compounds.
- Space
50 years ago, satellites threatened astronomers’ view of the cosmos
As satellite launches ramp up and the spacecraft clog the skies, astronomers fear for their data.
- Astronomy
Barnard’s star has at least one planet orbiting it after all
After decades of searching, a telltale gravitational wobble points to an exoplanet orbiting the nearby red dwarf every 3.15 days.
- Astronomy
Betelgeuse has a tiny companion star hidden in plain sight
Betelgeuse has a sequel — in the form of a companion star that's about the same mass as the sun, orbiting it about once every 2,100 days.
- Astronomy
Starlink satellites’ leaky radio waves obscure the cosmos
Starlink satellites unintentionally emit radio waves that appear more than 10 million times brighter than natural sources, as seen by ground-based radio telescopes.
- Physics
X-rays from nuclear blasts could defend Earth from asteroids
The X-ray pulses could deflect asteroids up to 4 kilometers wide, a new study suggests.
