Physicists are no longer content to simply listen to ripples in spacetime. A new proposal sketches out how an exquisitely ...

The universe rarely fails to amaze. One of its latest surprises—nicknamed the “Einstein zig-zag”—reveals a stunning arrangement of galaxies and a distant quasar. Together, they produce a gravitational ...

Don't be fooled by a new astronomy hoax making the rounds on social media websites. A widely shared story is claiming that Jan. 4 is "Zero Gravity Day," a date when people on Earth will be able to ...