How far would leaf-eating insects go to dine on their favorite food? Perhaps the other side of the world, according to researchers at Penn State who found insect damage on fossil leaves from South America that...
Observing Greenland from a helicopter, the main problem is one of comprehending scale. I have thought we were skimming low over the waves of a fjord, before noticing the tiny shadow of a seabird far below...
Astronomers have measured the icy heart of one of the largest comets ever discovered — a gargantuan, 4 billion-year-old rock that's currently barreling toward...
