Most comets, including the well-known Halley's, loop through our solar system like cosmic time capsules that formed alongside ...

The solar system consists of eight planets, several dwarf planets, hundreds of moons, and billions of asteroids, comets and meteoroids. The exact boundaries of the solar system ar ...

Astronomers witness first moments of planet formation as rock grains crystallize around distant star HOPS-315.

“What we’ve been trying to do is find a baby version of our Solar System somewhere else,” Merel van ’t Hoff, an astronomer at Purdue University in West Lafayette, Indiana, tells Nature’s Jenna Ahart.

Answer 17: A meteoroid is a small rocky or metallic body in space. A meteor is the streak of light produced when a meteoroid ...

In a groundbreaking discovery, astronomers have, for the first time, observed the formation of a new solar system.

Small, compact galaxies seen in the early universe have puzzled astronomers – finding these unusual objects closer to home ...

A strange interstellar object is hurdling its way towards our pale blue dot — and according to Harvard's top UFO hunter, ...

Astronomers have discovered the earliest seeds of rocky planets forming around a baby sun-like star, an unprecedented ...

Far beyond the eight familiar planets in our solar system, countless bizarre and extreme worlds await discovery — and some ...

Astronomers just caught a celestial sneak peek at how solar systems are born, and it starts with something delightfully small ...

Given 3I/ATLAS' highly eccentric orbit, this will be its one and only visit to our solar system, as its trajectory does not ...