Editor's note: This article was updated March 25 at 11:40 a.m. ET to account for the recent discovery of new moons around Saturn and Jupiter. The total number of planetary moons and small-body ...

June stargazing is definitely a late show, with true darkness not setting in until after 10 p.m. Mercifully, the best celestial show this month happens during evening twilight in the western sky. The ...

One sign that this massive bull market is entering its final stages is the sheer outrageousness of what Elon Musk is now ...

NASA's Webb telescope analyzes weather on distant exoplanet WASP-94A b, revealing extreme atmospheric patterns 700 lightyears ...

NASA’s Psyche spacecraft flew past Mars on its way to a strange metal-rich world that may reveal secrets about Earth’s ancient planetary formation past.

A new report stresses the security implications of mass drivers on the moon, arguing that these launchers could serve as ...

How to see the Blue Micromoon 2026 ...

June stargazing is definitely a late show, with true darkness not setting in over Butler until after 10 p.m. Mercifully, the best celestial show this month happens during evening twilight in the ...

On Earth, a cloudy morning giving way to a clear evening is unremarkable, the kind of forecast that barely warrants a glance ...

With a record of five failures and six partial successes in his Starship program, the 12th launch, on May 22, of Elon Musk’s rocket was critical to the success of the whole SpaceX enterprise. Doubts ...

New findings from the James Webb Space Telescope include cloudy weather on an exoplanet, and clues to the origins of one of Neptune's moons.