A new effort to map the rumblings in spacetime caused by enormous black hole collisions paints a surprisingly loud and ...

Some Theodore Elementary School students spent the last day of school before winter break launching objects across the ...

NORAD has an app and website, www.noradsanta.org, that will track Santa on Christmas Eve from 4 a.m. to midnight, mountain ...

Scientists want to define the kilogram by gravity—and not just electricity. Here’s why correctly quantifying mass is more ...

Almost 300 binary mergers have been detected so far, indicated by their passing gravitational waves. These measurements from ...