Recently in my physics lab, students were having trouble with the difference between mass and weight. I had ready answers---it’s a topic I’ve gone over hundreds of times. But after I explained that ...

Mass is mass is mass. Physicists have three different definitions of mass, all thought to be equivalent. Measurements of the distance between Earth and the moon confirm that two of those masses are ...

Astronomers have detected one of the darkest objects ever seen at a record cosmic distance—only with the assistance of ...

It is now thought that the source of this anomaly was a phase transition in which one mineral’s structure was altered.

Researchers have found that bone and muscle mass are regulated by the altered gravity. The experiments were done in space using Kibo, an ISS module developed by JAXA, and on the ground. An ...

A bundle of magnets and glass had a slight but detectable gravitational pull, pushing scientists closer to the boundary between classical and quantum physics. reading time 3 minutes Despite keeping us ...

European scientists are turning an aircraft into a laboratory that simulates lunar gravity to prepare astronauts and ...

Detail from an Ancient Greek red figure amphora of Theseus killing Procrustes, Louvre Museum. Source: Wikimediacommons.org/Public Domain Procrustes (literally the ...

Detail from an Ancient Greek red figure amphora of Theseus killing Procrustes, Louvre Museum. Source: Wikimediacommons.org/Public Domain Procrustes (literally the ...