Study claims humans reached the Americas 130,000 years ago

Some 130,000 years ago, scientists say, a mysterious group of ancient people visited the coastline of what is now Southern California. More than 100,000 years before they were supposed to have arrived in the Americas, these unknown people used five heavy stones to break the bones of a mastodon.

Key ingredient for life found spewing from Saturn's icy moon Enceladus

The likelihood of one of Saturn's moons harbouring life has received a huge boost, thanks to a new discovery made by NASA's Cassini spacecraft. The probe has detected traces of molecular hydrogen (H2) in icy plumes spewing from fissures on the surface of Enceladus.

Astronomers detect ultra-faint galaxy from the very early universe

Astronomers have discovered the faintest galaxy ever detected in the early universe. No more than a few pixels in Hubble images, the galaxy appears as it did 13.1 billion years ago — just 700 million years after the big bang.

Dreaming Found To Occur In NREM Sleep

A new study has found a so-called "hot zone" near the back of the brain that is always active during dreaming. The study also confirmed that dreaming does not just happen in the rapid eye movement (REM) phase, associated with fast rhythms of brain activity, but can also take place in non-rapid eye movement (NREM) sleep, when brain activity is slower.