The trans-Neptunian object Altjira, 44 times farther from the Sun than Earth is, could be the second known trinary, ...

Solar Wave Squeezed Jupiter's Magnetic Shield to Unleash Heat Apr. 3, 2025 — A solar wind event from 2017 that hit Jupiter and compressed its magnetosphere created a hot region spanning half ...

These icy bodies contain organic molecules — and don’t fall into any known category of celestial object we’ve seen before.

Most meteorites, however, originate from the solar system's main asteroid belt—a vast region between the orbits of Mars and Jupiter where more than a million asteroids circle the sun.

Carbon dioxide has been detected on a planet outside our solar system for the first time ... through a process in which a bunch of tiny icy particles coalesced to form a solid core, which then ...

"The more we know about Earth's icy environments, the better we will be able to understand the other environments," said ...

A bold geochemical model reveals that TOI‑270 d, a sub‑Neptune 73 light‑years away, is likely a giant rocky world cloaked in ...

Here’s how it works. Astronomers have discovered two new exoplanets that are similar to other worlds found in the Milky Way, but are unlike any in our own solar system. The two exoplanets ...

How can astronomers pierce through the interstellar fog of the Milky Way—not to study distant objects, but to understand the ...

This story was updated to add new information. Just over two weeks after a total lunar eclipse, the U.S. will be dazzled by a partial solar eclipse. For skywatchers in the northeastern U.S. and ...

Your solar eclipse glasses from last year will come in handy this weekend. A partial eclipse of the sun will take place right at sunrise on Saturday morning, according to scientists at Hudson ...

THE question of the origin of the solar system is one that has been a source of speculation for over a hundred years; but, in spite of the attention that has been devoted to it, no really ...