The curious minds at What If imagine the Earth colliding with another massive planet, revealing catastrophic destruction, orbital chaos, and planetary debris.

If executed at the scale, Musk's orbital data center plan could have devastating effects on the environment and the ...

More than 4.5 billion years ago, a Mars-sized planet may have collided with the young Earth in a cataclysmic impact. The ...

New observations of Ganymede reveal a striking similarity between the auroras on the largest moon in the solar system and those on Earth. The international team of astrophysicists, led by researchers ...

NASA has released a breathtaking timelapse of glowing green auroras filmed from the International Space Station, revealing how solar particles transform Earth’s skies into a sweeping cosmic light show ...

Saturn’s largest moon, Titan, might have formed after a collision with a lost moon, according to new research.

Planets are often described as ancient, unchanging worlds. Planets are born out of chaos, shaped by violent collisions and swirling dust. They grow, t.

A new phase of the space race is unfolding far above Earth, but its effects may not stay there. Satellite launches have increased sharply recently, la.

A new study hints that Saturn's largest moon, Titan, was created around 400 million years ago, when two massive moons smashed ...

In 250 million years, Earth’s continents may merge into a supercontinent so extreme that most mammals would struggle to survive.

Scientists suggest Titan formed from a giant moon collision that also may explain Saturn’s rings and strange moon orbits.

Skies over Southern Europe, the central United States and parts of Asia glowed with the Northern and Southern Lights, and for a short time, even India joined that list. But behind the beauty lay ...