What might stars be like in other universes?
NASA's newest planet-hunting mission has reported detecting its first alien world — a "super-Earth" that is likely evaporating under the heat from its star, a new study finds.
A dust-enshrouded, giant black hole ripping apart a star blasted out a superfast jet of particles that packed about 125 billion times the amount of energy the sun releases per year, a new study finds.
The hearts of small galaxies may hide a mysterious kind of black hole that has long proved elusive: medium-size black holes with masses between the mass of a few suns and that of millions of suns, a new study finds.
The odd shapes of Saturn's inner moons , which resemble objects ranging from ravioli to potatoes, may be due to mergers of tiny moonlets, a new study finds.
Astronomers may have unknowingly discovered rocky planets with rings, which they mistook for other kinds of worlds, a new study finds.
Saturn may have played a key role in the birth of Jupiter's largest moons, a new study finds.
The rise of the largest volcanoes in the solar system may have led Mars to possess oceans hundreds of millions of years earlier than previously thought, a new study finds.
Rogue moons, torn from their planets and flung outward to drift through space, may be as common as stars in the universe, a new study finds.
The "Star Wars" robots R2-D2 and BB-8 are the droids that NASA is looking for — "astromechs" that can help repair spaceships on the fly, a NASA robotics engineer says.
The origins of intense flickering displays of light high up in Earth's atmosphere are now revealed after a decades-long hunt, a new study finds.
New research may have identified a mechanism that limits just how powerful explosions from the sun can become, shedding light on their ability to damage communication satellites and power grids.
Technology in development could capture images from an Earth-size planet in the nearby Alpha Centauri system in the 2020s, new research suggests.
Heavyweight stars up to hundreds of times the mass of the sun may be more abundant than previously thought, a new study finds.
The presence of life might influence how fast a planet spins, releasing gases such as oxygen that can crank up how quickly a world turns, a new study finds.
Although pulsars regularly blast out deadly gamma rays and X-rays, alien planets in orbit around them could theoretically be habitable, a new study finds.
Tahitian myth, South African nicknames, and ancient Chinese and Hindu titles for lunar mansions are among the inspirations for the new names of 86 stars in the Earth's night sky, astronomers said.
Computers are simulating the ancestral versions of the most common protein on Earth, giving scientists an unparalleled look at early life's development of harnessing energy from the sun and production of oxygen.
A strange dead star may be a remnant of what was essentially a miniature supernova, a new study finds.
Mars may experience snowstorms at night, a new study finds, suggesting that the Martian atmosphere is far more active than previously thought.