New discoveries of fossil clawed footprints from Australia, published in Nature, push the origin of reptiles back in time by at least 35 million years and change the entire timeline for the origin of ...
Astronomers believe this barred spiral galaxy could be the oldest example of its kind ever observed. Research led by Daniel ...
For decades, the asteroid that ended the reign of the dinosaurs has stood as a symbol of total planetary devastation. But ...
"I'm stunned." says Per Ahlberg of Uppsala University, who coordinated the study; "A single track-bearing slab, which one person can lift, calls into question everything we thought we knew about when ...