The interstellar object 3I/ATLAS is expected to make its closest approach to Earth mere days from now, coming within just 167 ...

NASA’s confirmation that Earth has darkened as air has grown cleaner captures a jarring reality: the same policies that spare lungs can, in the short term, expose the planet to more heat. As pollution ...

Last month, European regulators grounded thousands of Airbus jetliners, citing an unusual reason: solar radiation. The planes ...

NASA's Nancy Grace Roman Space Telescope team has released detailed plans for a major survey that will reveal our home galaxy ...

The giant planets weren't always where we find them today. Jupiter, Saturn, Uranus and Neptune formed in a more compact ...

"This work shows without a doubt that Parker Solar Probe is diving deep with every orbit into the region where the solar wind is born." ...

While the 21st century has been bumpy, it has also ushered in monumental scientific and technological breakthroughs that have ...

A stray comet from another star swings past Earth this week in one last hurrah before racing back toward interstellar space.

An ultra-hot rocky exoplanet may be wrapped in a dense atmosphere, defying expectations about what small planets can sustain.

In the spirit of the season, the interstellar comet 3I/ATLAS is changing color as it leaves the sun behind — shifting from a ...

A vast ring of rocky leftovers between Mars and Jupiter, the asteroid belt preserves clues to how the planets — and Earth ...