Geography

Jurassic drop in ocean oxygen lasted a million years

Jurassic drop in ocean oxygen lasted a million years

Dramatic drops in oceanic oxygen, which cause mass extinctions of sea life, come to a natural end - but it takes about a million...
Superbugs date back to 450 million years ago

Superbugs date back to 450 million years ago, well before the age of dinosaurs

Leading hospital "superbugs," known as the enterococci, arose from an ancestor that dates back 450 million years -- about the time when animals were...
How do six-sided snowflakes form

Answer: How do six-sided snowflakes form?

More than 400 years ago, renowned mathematician and scientist Johannes Kepler speculated about the creation of one of nature's most angelic and unique shapes:...
A new species of giant bird-like dinosaur discovered in China

A new species of giant bird-like dinosaur discovered in China

A new species of giant bird-like dinosaur--which tended to enormous nests that were bigger than a monster truck tire--has been discovered in Henan, China. The...
Oldest evidence of life on land found in 3.48-billion-year-old Australian rocks

Oldest evidence of life on land found in 3.48-billion-year-old Australian rocks

Fossil evidence of early life has been discovered by UNSW scientists in 3.48 billion year old hot spring deposits in the Pilbara of Western...
Homo naledi's surprisingly young age opens up more questions on where we come from

Homo naledi’s surprisingly young age opens up more questions on where we come from

250 000 year old species from Rising Star Cave raises more questions about our origins. Scientists today announced that the Rising Star Cave system...
Humanlike ways of thinking evolved as early as 1.8 million years ago

Humanlike ways of thinking evolved as early as 1.8 million years ago

By using highly advanced brain imaging technology to observe modern humans crafting ancient tools, an Indiana University neuroarchaeologist has found evidence that human-like ways...
How was Earth's crust created? Here is a new theory

How was Earth’s crust created? Here is a new theory

More than 90% of Earth's continental crust is made up of silica-rich minerals, such as feldspar and quartz. But where did this silica-enriched material...
New space weather model can simulate solar storms from nowhere

New space weather model can simulate solar storms from nowhere

Our ever-changing sun continuously shoots solar material into space. The grandest such events are massive clouds that erupt from the sun, called coronal mass...
Mineral weathering revived battered Earth after mass extinction

Mineral weathering revived battered Earth after mass extinction

Bedrock of Earth got severely beaten up by hothouse climate conditions during one of planet’s mass extinctions some 200 million years ago. But the...