Earth is believed to have formed partly from carbonaceous meteorites, which are thought to come from outer main-belt asteroids.

Astronomers identified a number of stellar streams from past mergers years ago, and also used globular clusters to construct a timeline.

Astronomers have used a new technique to confirm a real-life Tatooine, the fictional planet with two suns that was home to Luke Skywalker.

Black holes are more than just massive objects that swallow everything around them—they're also one of the universe's biggest energy sources

Researchers in Australia say their latest project scanned billions of stars and 144 known exoplanets for signs of alien broadcasts.

The galaxy, dubbed Alcyoneus, is a large radio galaxy that spans 16.3 million light-years or roughly 150x the span of the Milky Way galaxy.

Asteroid 16 Psyche, which NASA intends to visit with a spacecraft in 2026, may be less heavy metal and more hard rock than formerly thought.

A team of German astronomers have discovered a strange new type of star covered in the by-product of helium burning.

A new study suggests the existence of a direct interaction between the elementary particles that make up the dark matter and ordinary matter

A team of space scientists has published a paper suggesting that there may be an Earth or Mars-sized planet orbiting beyond Neptune.

New research from Washington University in St. Louis suggests a fundamental reason why Mars has no water on its surface.

MUSE and HelioSwarm will help improve our understanding of the dynamics of the Sun-Earth connection, and the changing space environment.

Researchers have confirmed that a possible microlensing event witnessed in 2011 was due to the presence of a rogue black hole.

Older women who eat more than one to two servings a week of baked or broiled fish or shellfish may counteract the effects of air pollution.

The hydrothermal crater lake of the Poás volcano in Costa Rica is one of the most hostile habitats on the planet.

Physicists looked at specific features of light to figure out the closest you can get to a black hole without having to prevent disaster.

Scientists found something unusual that releases a giant burst of energy 3 times an hour, and unlike anything astronomers have seen before.

According to a study by a team of scientists, Saturn's mini-moon Mimas may have a "liquid water ocean beneath a 24-31 km thick ice shell".

How many black holes are out there in the Universe? This is one of the most relevant and pressing questions in modern cosmology.

Water is essential for life on Earth and other planets, and scientists have found ample evidence of water in Mars’ early history.