Those concerned that 3I/ATLAS' arrival to our solar system meant that some sort of alien invasion was imminent can breathe a ...

C/2025 R3 (PanSTARRS)’s visit comes in the wake of the comets C/2025 A6 (Lemmon) and C/2025 R2 (SWAN) that kept comet ...

Astronomers are closing in on one of the most tantalizing possibilities in planetary science, evidence that a previously ...

At times, the sun ejects energetic material into space, which can have consequences for space-based and even ground-based ...

Grab-and-go missions to asteroids have provided some of the most scientifically valuable samples since the Apollo ...

A distant gas giant the size of 10 Jupiter planets is now the first planet outside Earth's solar system to be mapped in three dimension, a team of astronomers says. What's more, the researchers are ...

Short-lived radioisotopes such as aluminum-26 influenced early solar system heat, water retention and the formation of Earth-like rocky planets, according to meteorite analyses and models.

Interstellar comet 3I/ATLAS made its closest approach to Earth on Friday, Dec. 19. The comet will pass within about 170 million miles of our planet and poses no danger. While not visible to the naked ...