MIT researchers find that rain as acidic as lemon juice may have contributed to massive die-offs on land 252 million years ago.

Named after a cannibalistic man-eating monster from a native American legend, this newly discovered large dinosaur had its reign of terror in what is now Utah.

"Improving the exploration of the magnetic field's function and recording space weather data more accurately allows us to draw conclusions for life on our planet." - Johanna Wanka

Half a mile under Chesapeake Bay is the oldest sizable body of seawater to be identified worldwide. This ancient sea is thought to be 100-145 million years old.

A monster gamma-ray burst - whose afterglow lasted months - may have come from the explosion of a giant star, say astronomers at the University of Copenhagen.

Observations of the powerful gamma-ray burst of April 2013 didn't match energy levels predicted by the standard models, say astronomers at Stanford University.

Researchers say 30 percent of modern Native American’s ancestry came from this youngster’s gene pool.

“Exceedingly rare triple system, seen when universe was 800 million years old, provides insights into the earliest stages of galaxy formation." - Richard Ellis

"We might witness a nice, long-tailed comet visible to the naked eye that will leave millions of people with fond memories for a lifetime, or maybe it will be a small comet for sky hunters using binoculars and a good map of its position. Or it might yet break up and vanish." - Alan MacRobert

“If humanity does not want to go the way of the dinosaurs, we need to study an event like this in detail,” said earth scientist Qing-zhu Yin.