Today, it’s believed that Jupiter and Saturn, the largest planets, were the first to fully form, both within a few million ...

The unusual orbit of a possible dwarf planet, known as 2017 OF201, makes it less likely that our solar system contains a ...

In the cold, distant reaches of the Solar System, far beyond Pluto, astronomers have just identified what could be a new dwarf planet. It's called 2017 OF201, a rock that appears to be some 700 ...

China's ambitious Tianwen-2 mission is heading for to two extremely different bodies in our solar system, and should provide ...

Perseverance has so far found a rock, dubbed Cheyava Falls, which is the strongest evidence of something possibly modified by life. It is the weakest possibility of life signal on NASA’s CoLD scale, ...

Stars that pass close to the solar system could pull planets out of alignment, sending them hurtling into the sun or out into ...

A solar flare is a burst of radiation on the sun, according to NASA. They are the most powerful explosions in the solar system, with the biggest ones having as much energy as a billion hydrogen bombs.

Scientists have discovered how solar activity affects the velocity distribution and evolution of helium pickup ions.

Mar. 17, 2025 — A combination of cosmic processes shapes the formation of one of the most common types of planets outside of our solar system, according to a new ... Webb Telescope Captures Its ...