Harvard researcher Avi Loeb says comet 3I/ATLAS weighs 33 billion tons and spans 3.1 miles, making it far larger than previous interstellar visitors.

The methane gas may constitute a rarefied atmosphere, or it may come from erupting plumes on Makemake’s surface.

The spacecraft will map the boundaries of the heliosphere, study how Earth’s outer atmosphere reacts to solar activity and ...

Asteroid ‘Families’ Reveal Hidden Histories and Impact Risks across the Solar System ...

Scientists measure the distance to the Moon by bouncing lasers off mirrors placed there by space probes and astronauts.

Bizarre NASA discoveries that we’re not allowed to talk about (but we will) Space exploration consistently reveals phenomena ...

A new study warns of an undiscovered population of asteroids that could strike Earth with little to no warning.

In the fickle universe of popular TV entertainment, there is often a creative endeavor whose reach far exceeds its grasp for ...

Earth's invisible magnetic field acts as a vital shield, protecting life from dangerous cosmic radiation and solar particles.

Astronomers have observed a white dwarf, a highly compact stellar ember, that appears to have gobbled up an icy world akin to ...

The three satellites look to measure mysteries of space weather while also acting as a warning system for its dangerous ...

Scientists have discovered methane gas on the dwarf planet Makemake, a finding that has surprised astronomers studying the outer solar system.