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

Humanity's drive to explore has taken us across the solar system, with astronaut boots, various landers and rovers' wheels ...

I/ATLAS, a mysterious interstellar object racing toward the Sun, is baffling scientists with its speed and origin. Some ...

The "alien mothership" hypothesis for interstellar comet 3I/ATLAS is about to have a key test, as it hits solar conjunction ...

We're just weeks away from this interstellar visitor reaching its brightest in Earth's night skies. Will we see it?

Solar system is a collection of various celestial bodies that are held together by the gravitational pull of the sun. Our ...

Keck II telescope observations of interstellar object 3I/ATLAS found "evidence for a puzzling anti-tail extension" pointing ...

An interstellar object the size of Manhattan, named 3I/ATLAS, is baffling scientists by emitting an industrial metal compound ...

Harvard’s Avi Loeb says interstellar object 3I/ATLAS is releasing a metal alloy only known from human industry, raising ...

Roughly 4.5 billion years ago, the young solar system was a swirling cloud of gas and dust that formed the first asteroids and planets, including the young Earth, then a hot, molten sphere likely ...

New images of the 33-million ton interstellar object confirmed it is releasing a nickel alloy commonly used in the aerospace ...

When we think of a day, we usually imagine 24 hours. But did you know that not all planets have days that last 24 hours? In ...