
One Solar Storm Could Ground Spaceflight for Decades
Modern low-Earth orbit (LEO) has become a crowded, fast-moving environment. New research warns that a single powerful so...

Modern low-Earth orbit (LEO) has become a crowded, fast-moving environment. New research warns that a single powerful so...

Hot Jupiters — giant planets that hug their stars in blisteringly short orbits — have puzzled astronomers for decades. A...

Astronomers have found and directly imaged a massive exoplanet that orbits two suns — a real-life echo of the fictional ...

NASA’s James Webb Space Telescope has delivered the strongest evidence yet that a small, ultra-hot rocky exoplanet — TOI...

About 880 light-years away a scorched gas giant is literally pouring part of itself into space. New observations from th...

SpaceX says a Chinese satellite passed within roughly 200 meters of one of its Starlink spacecraft during a recent launc...

December brings the northern hemisphere's brightest annual meteor display: the Geminids. This shower often outshines the...

Earth's long-term climate swings — the alternation between ice ages and warmer intervals — are often explained by Milank...

Scientists have discovered an unlikely timekeeper for Arctic sea ice: microscopic particles from space. By tracking trac...

We picture giant exoplanets as oversized Jupiters — banded, stormy and familiar. New observations and atmospheric models...

Astronomers using a smart mix of space-based star tracking and Subaru Telescope imaging have uncovered two rare companio...

NASA’s James Webb Space Telescope has returned its first detailed look at TRAPPIST-1e, one of seven Earth-sized worlds o...

This year’s Antarctic ozone hole was unexpectedly small and short-lived, according to NOAA and NASA analyses. Scientists...

Forty years after Voyager 2's historic flyby, researchers at the Southwest Research Institute (SwRI) propose a compellin...

Small, pale patches dotting Jezero Crater have given scientists fresh evidence that parts of Mars may once have been war...

A team of astronomers has identified a colossal, twisting strand of galaxies that appears to be rotating like a slow-mot...

The last full Moon of 2025 will arrive with extra drama. On the evening of Thursday, December 4, a Cold Supermoon will c...

When NASA's Curiosity rover accidentally crushed a seemingly ordinary rock on the floor of Gediz Vallis, it exposed a br...

New high-pressure experiments suggest Earth’s inner core isn’t a typical solid but a hybrid, superionic material: iron r...

As launches, constellations and plans for the Moon and Mars multiply, the growing cloud of discarded satellites and rock...