Pre-contact Central and South American dogs (Canis familiaris) — all dogs preceding contact with European settlers — descended from a single maternal lineage that diverged after dogs entered North ...

Around 12,800 years ago, Earth collided with fragments of a disintegrating comet, triggering Younger Dryas climate change; this event created environmental conditions at Abu Hureyra, Syria, that ...

In 2023, astronomers reported a tentative detection of dimethyl sulfide — which is predominately produced by marine microbes on Earth and regarded as a biosignature gas — in the atmosphere of the ...

A team of geologists from Curtin University has discovered unequivocal evidence for a hypervelocity meteorite impact 3.47 billion years ago (Archean Eon) in the center of the Pilbara region in Western ...

”Our newly-devised model stretches the galaxy formation time by a several billion years, making the Universe 26.7 billion years old, and not 13.7 as previously estimated,” said University of Ottawa’s ...

In their study, the scientists tested one of the striking predictions of the Big Bang theory – that ordinary geometry does not work at great distances. In the space around us, on Earth, in the Solar ...

The poorly understood ‘ matalafi ’ — the homogenate of Psychotria insularum leaves (fresh leaf juice) — is widely used in Samoan traditional medicine to treat inflammation associated with fever, body ...