"Star Wars' has had a history of using — and, many would say, misusing — the word "parsec."
For the first time, scientists have detected a newly born heavy element in space, forged in the aftermath of a collision between a pair of dead stars known as neutron stars.
Thousands of planets may form and orbit around the kind of supermassive black holes found in the cores of most, if not all, galaxies, a new study finds.
Giant alien worlds with searing, close orbits to their host stars can inflate like balloons. Now astronomers have discovered one so puffy that it is one of the least dense planets ever discovered.
By analyzing the disintegrated remains of distant worlds consumed by their stars, a new study found that at least some rocky exoplanets may have interiors similar to those of Earth and Mars.
New infrared cameras and gel-based thrusters just might help future satellites dodge space debris, a new study finds.
The faintly glowing wisps of gas that make up the intergalactic filaments of a universe-spanning cosmic web may have finally been detected for the first time, a new study reports.
Alien worlds resembling giant eyeballs might be able to host life, but they may not be as common as previously suggested, a new study finds.
Astronomers have discovered a giant, Jupiter-like planet in an unexpected location, and it's orbiting a small, nearby red dwarf star, a new study finds.
Astronomers have identified a half dozen exoplanets that may be made of an exotic form of matter unknown on Earth.
What might it take to feed a million people on Mars? Lab-grown meat, tunnel-grown crops and cricket farms, a new study finds.
Astronomers have discovered the most massive example yet of the dead stars known as neutron stars, one almost too massive to exist, a new study finds.
Warps in the fabric of space-time can act like magnifying glasses, and that may help solve a cosmic mystery about the rate of the universe's expansion, a new study found.
The birthplace of two meteorites from Mars was apparently a zone with two craters: new findings that scientists might use to unlock secrets on the Red Planet.
A robot deployed on one of the darkest asteroids in the solar system may now shed light on the origins of some of the oldest, rarest meteorites, a new study finds.
By examining Antarctic snow, researchers have for the first time discovered interstellar dust that recently fell to Earth, a new study finds.
A storm of cosmic impacts may have ended relatively early on Mars, suggesting that the Red Planet was habitable longer than scientists previously thought, a new study finds.