Proof of parallel universes radically different from our own may still lie beyond the domain of science
NASA’s best hope for planetary defense resides with a proposed asteroid-seeking space telescope. Will it get funded?
The invisible dark matter particles that dominate the universe may come in strange and varied forms
The confirmed oceans alone add up to 50 times the amount of water on Earth
The Dark Energy Survey is examining distant galaxies to figure out why space is expanding at an ever faster pace
Dips in starlight reveal the architecture of a super Saturn around a distant star
Dozens of particles from halfway across the universe have landed in the IceCube experiment. These messengers could help answer some long-standing cosmic conundrums
"Monkey King" is first in a line of Chinese space missions focused on scientific discovery
Pushed out of their homeland by war and drought, Syrians seek a better future abroad
The gigantic accelerator in Europe has produced hints of an exotic particle that defies the known laws of physics
Newly discovered lobes stretch tens of thousands of light-years above and below the Milky Way's disk. Where did they come from?
Astrochemists are discovering many compounds in the cosmos that cannot exist on Earth
Two controversial new studies suggest the discovery of large objects at the outer reaches of the solar system
Astronauts already skip ahead in time, but the laws of physics seem to forbid going backward—or do they?
A new breed of giants raises questions about how the biggest galaxies arise
New study explores how life on one exoplanet could spread to its neighbor
Black holes may be bubbles devoid of space and time—and encased in “firewalls” that confound both general relativity and quantum mechanics
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?
The cosmic neutrino background could provide more details about the universe as it once was