Rhinos lived in the Yukon 8 million years ago

Fossilized remains found in 1973 in the Yukon and recently analyzed show that the territory was populated 8 to 9 million years ago by ancient rhinos and turtles. These rhinos were about two meters high and three meters long. They were certainly among the largest…

How the resounding failure of a telescope led to this impressive X-ray image

The X-ray image above shows one of the neighbors of the Milky Way, the Great Magellanic Cloud. In this image you can see vague gas emissions, stars, distant galactic nuclei and in the center the remains of a supernova discovered for the first time 32…

Dark matter, older than the big bang?

A new theory that dark matter appeared before the big-bang trainer of the universe is advanced by American astrophysicists, who also think they have found a way to detect it. Dark matter, which makes up about a quarter of the universe, is certainly one of…

Chronic insomnia related to memory problems

The cognitive function of people aged 45 and over is disrupted by chronic insomnia, regardless of the effect of other health problems associated with this sleep disorder that affects approximately 10% of the adult population. Altered functions include the memory of facts, concepts, words and…