Is the big bang, and all that came from it, a holographic mirage from another dimension?
Astronauts already skip ahead in time, but the laws of physics seem to forbid going backward—or do they?
Newly discovered lobes stretch tens of thousands of light-years above and below the Milky Way's disk. Where did they come from?
Dozens of particles from halfway across the universe have landed in the IceCube experiment. These messengers could help answer some long-standing cosmic conundrums
The Dark Energy Survey is examining distant galaxies to figure out why space is expanding at an ever faster pace
Super Powerful X-Ray Laser Boils Atoms in Molecules and Explodes Living Cells--All in the Name of Science
What started as a Star Wars idea for a 1980s-era antimissile weapon is now a microscope of unprecedented power, able to create exotic forms of matter found nowhere else in the universe
Physicists speak of the world as being made of particles and force fields, but it is not at all clear what particles and force fields actually are in the quantum realm. The world may instead consist of bundles of properties, such as color and shape
The laws of physics may well prevent the human brain from evolving into an ever more powerful thinking machine
Astronomers have discovered two supermassive black holes locked in a whirling dance at the center of the nearest quasar galaxy