On April 20, a satellite conceived in the 1960s to test two aspects of Einstein’s general theory of relativity finally roared into space from Vandenberg Air Force Base in California. Aside from two ...

Two experiments demonstrate sample transfer and sequencing in a low-gravity environment. After 160 swoops in NASA’s zero-gravity aeroplane, researchers have the first evidence that genetic sequencing ...

According to legend, Galileo dropped weights off of the Leaning Tower of Pisa, showing that gravity causes objects of different masses to fall with the same acceleration. In recent years, researchers ...

In a development at the intersection of quantum mechanics and general relativity, researchers have made significant strides toward unraveling the mysteries of quantum gravity. This work sheds new ...

In this historical photo from the U.S. space agency, a test subject is suited up for studies on the Reduced Gravity Walking Simulator on Dec. 11, 1963. The simulator is located in the hangar at ...