Touchdown airbursts — a type of cosmic impact that may be more common than the crater-forming, dinosaur-killing kind — remain somewhat less understood. UC Santa Barbara Earth Science Emeritus ...

Microscopic grains of alien dust buried in the sediment at the bottom of the ocean could be evidence of a comet that exploded in Earth's atmosphere 12,800 years ago. This hypothetical event, known as ...

Some cosmic impacts are loud, fiery, and leave unmistakable craters. Others are quieter in geological terms, yet no less destructive. These “touchdown airbursts” occur when a comet or asteroid ...

Around 12,800 years ago, the Northern Hemisphere got cold - really cold - in an abrupt climate change crisis called the Younger Dryas event. Now, researchers have found evidence that suggests that the ...

(Santa Barbara, Calif.) — Researchers continue to expand the case for the Younger Dryas Impact hypothesis. The idea proposes that a fragmented comet smashed into the Earth’s atmosphere 12,800 years ...

A team of scientists from South Africa has discovered evidence partially supporting a hypothesis that Earth was struck by a meteorite or asteroid 12 800 years ago, leading to global consequences ...

Stephen has degrees in science (Physics major) and arts (English Literature and the History and Philosophy of Science), as well as a Graduate Diploma in Science Communication. Stephen has degrees in ...

PROVIDENCE, R.I. [Brown University] — At the end of the Pleistocene era, wooly mammoths roamed North America along with a cast of fantastic creatures – giant sloths, saber-toothed cats, camels, lions, ...