Tag: time travel
Do photons wear out? An astrophysicist explains light’s ability to travel...
Jarred Roberts, University of California, San Diego
My telescope, set up for astrophotography in my light-polluted San Diego backyard,...
Why does gravity pull us down and not up?
Mario Borunda, Oklahoma State University
Curious Kids is a series for children of all ages....
EXPLORING NATURE
Giant ground sloths’ fossilized teeth reveal their unique roles in the...
Larisa R. G. DeSantis, Vanderbilt University and Aditya Reddy Kurre, University of Pennsylvania
A two-toed sloth at the...
