Dark matter is hypothesized to outweigh "ordinary matter" in the universe by a factor of five. That means all the stuff we ...

Astronomers tallying up all the normal matter—stars, galaxies and gas—in the universe today have come up embarrassingly short ...

The event will be ten times brighter than our Moon in the night sky, but never fear, it won't happen for another 23 billion ...

Astronomers have discovered a rare group of five dwarf galaxies located relatively close to Earth; these galaxies exist in a near-perfect alignment, resembling a string of cosmic pearls in the sky.

"When I first spotted this system with a very high total mass on our galactic doorstep, I was immediately excited." ...

"But even if we don't detect life, we'll quantify how rare – or common – planets ... fewer than 10 to 20% of similar planets in the universe has life. Surveying this many exoplanets is well ...

Astronomers have long predicted that two orbiting white dwarfs are the cause of most type 1a supernova explosions. While the ...

The explosion will happen through a rare process called a quadruple detonation, where one blast triggers a chain of others, ...

A nearby cosmic ticking time bomb has been found! Just 150 light years away, a pair of white dwarf stars are on a death spiral, destined to explode in a type 1a supernova. This discovery confirms long ...