The solar system is composed of the sun, eight major planets, five dwarf planets, over a hundred moons, and countless comets ...

The Milky Way contains a modest amount of alien civilizations, a new paper proposes — and there's a reason we aren't seeing ...

Since the 1970s, Voyager 1 has been making groundbreaking discoveries. But its journey is far from over, and it's still ...

Interstellar comet 3I/ATLAS, a 7.5-billion-year-old visitor from the early galaxy, is offering scientists a rare glimpse into ...

With the advent of commercial spaceflight, an increasing number of people may be heading into space in the coming years. Some ...

An alien comet passing through our solar system made its closest approach to Mars recently, and two European robotic ...

Conquer the cosmos and lead ships, fleets, and even entire civilizations to victory in the best space strategy games.

The James Webb Telescope captures the beginning of planetary formation around the young star HOPS-315 for the first time.

In an astonishing feat of gravitational sleuthing, astronomers have found a mysterious, dense blob of invisible matter ...

Is interstellar object 3I/ATLAS an alien probe or a natural comet? Explore the compelling scientific evidence, from its tail ...

When it comes to science, a simple observation can upend everything you think you know, such is the case with one star ...

Comet C/2025 A6 (Lemmon) is this year’s brightest comet visible from Earth—an icy relic from the solar system’s origins that ...