Scientists have announced the results of a decade-long quest to measure Newton’s gravitational constant, the force that keeps ...

A SpaceX Dragon capsule loaded with roughly 6,500 pounds of supplies, spare parts, and scientific experiments is set to ...

The simple experiment setup. Image via Wiki Commons. In 1927, physicist Thomas Parnell poured hot pitch into a funnel at the ...

After a 10-year effort, physicists got a value for “Big G” that does not settle the debate over one of nature’s hardest numbers to nail down.