Dark matter lenses, which distort and amplify light from background objects, may be more abundant in galaxy clusters than expected.
A team of astronomers and volunteers tracked down the coldest brown dwarfs, which are too small to be stars and too big to be planets, within about 65 light years of the Sun.
“We discovered the source, and discovered its periodicity, but we do not know what it means or how it is produced," said the study's lead author of the mysterious gamma ray source, which runs in a clockwork 162-day cycle.
Your teeth and bones have star stuff.
Currently near Mars, it will fly past Earth in the distant future.
Tabloids and UFO enthusiasts have had a field day speculating about the strange photo, but the answer lies in the difficulty of sending data from space.
An international team of scientists has discovered a filament of a fundamental structure known as the cosmic web hiding in the 'Zone of Avoidance,' and it's one of the biggest structures ever seen by humans.
Scientists believe they have likely discovered a new and unexplained class of space object: the Odd Radio Circle, or ORC.
Where did the elements that make up our bodies come from? How fast is the universe accelerating? A pair of dead stars, among the weirdest scientists have seen, could point toward the answers.
If a normal planet is an avocado, then all that remains (or maybe all that ever existed) of the bizarre planet TOI-849B is the pit.
Astronomers are trying to figure out whether the star collapsed into a black hole without going supernova, or if it disappeared in a cloud of dust.
The new image could be the first direct evidence of the site of a planet's fiery birth in interstellar space.