Newly discovered lobes stretch tens of thousands of light-years above and below the Milky Way's disk. Where did they come from?
The Dark Energy Survey is examining distant galaxies to figure out why space is expanding at an ever faster pace
Astronauts already skip ahead in time, but the laws of physics seem to forbid going backward—or do they?
The invisible dark matter particles that dominate the universe may come in strange and varied forms
Emerging evidence suggests that the first starlight to shine after the big bang’s flash came from distant suns that ranged from very large to incredibly huge
Is the big bang, and all that came from it, a holographic mirage from another dimension?
As you dig into those mashed potatoes, be grateful the universe’s physical constants are so precise that a slight variation in any one would render that drumstick—and even your existence—impossible
A collision between the Red Planet and its innermost moon, Phobos, could create a Saturn-like field of debris
A dozen quasars in the early universe appear to have shut down in just a few years, baffling astronomers
Scientists photograph a gas-giant exoplanet forming around a young star that lies about 450 light-years from Earth
Astronomers get closer to an explanation for the unexpected abundance of gamma rays at the core of our galaxy
The recently discovered small galaxy Leo P contains only about a hundred-thousandth as many stars as the Milky Way, but it's bucking the small galaxy trend by continuing to make new ones
Scientists will use wonky orbit to test Einstein’s theories
The ambitious new Dark Energy Survey aims to solve the riddle of why space is expanding at an ever faster pace
Asteroid TB145 will make a near pass of our planet, offering astronomers a chance for an up-close radar view of its surface
The presence of the gas could have implications for theories of the early solar system
Astronomers witness a white dwarf star ripping worlds to pieces in real time
The gaps between the universe’s filaments of dark matter and galaxies are far from static
The next week or two Uranus, Mercury, Jupiter and Mars are making notable appearances in the night sky