Earth has a group of cosmic stalkers. Known as "co-orbitals," these small bits of rock have a 1:1 mean motion resonance with Earth. Basically, they take the exact same amount of time to orbit the sun as we do.

A 2017 astronaut photo shows two sets of solar evaporation ponds alongside the Colorado River. The stripy structures are used to refine potassium chloride, or "potash," which is mined nearby.

A scorching, airless world just 48 light-years away is offering scientists a rare glimpse into the geology of distant planets. Using the James Webb Space Telescope, researchers studied LHS 3844 b—a tidally locked “super-Earth” with a permanent dayside hot enough to melt metal—and discovered it’s a dark,

Debris is a growing threat to orbital infrastructure, and it’s only going to get worse as the number of launches increases

CEST on May 19, 2026, a Vega-C rocket lifted off from Europe’s Spaceport in Kourou, French Guiana, carrying the Solar wind Magnetosphere Ionosphere Link Explorer — SMILE — into a parking orbit 707 kilometers above Earth.

ESA-China SMILE mission lifts off to deliver first global images of Earth's magnetosphere The SMILE mission developed jointly by the European Space Agency and China has reached orbit after more than a decade of preparations and cooperation.

Solar emissions exert 'drag' on space junk orbiting Earth. From historical measurements across a period of 36 years, researchers have now shown that space junk begins to fall down much faster once the sun's activity across the solar cycle reaches approximately 67% of its peak.