Qu'a-t-on découvert sous la calotte glaciaire...

L'énergie noire, également appelée énergie sombre, est une composante hypothétique de l'univers introduite pour expliquer l'accélération observée de son expansion. Elle représenterait environ 70 % du contenu énergétique de l'univers, le reste étant constitué de matière no ...

Les lunes ne possèdent généralement pas d'anneaux comme les planètes en raison de plusieurs facteurs physiques et dynamiques liés à leur taille, à leur gravité et à leur environnement orbital.

Voici les principales raisons :

1. Gravité insuffisante

Les p ...

It’s the sort of plot you would expect from a classic sci-fi movie; what if there are viruses trapped deep in Antarctic ice that could wreak havoc on humans?

Crowdscience presenter Alex Lathbridge puts on warm gloves and meets the scientists venturing into the icy wilds ...

In this episode:00:47 An RNA-based viral system that mimics bacterial immune defencesTo protect themselves against viral infection, bacteria often use CRISPR-Cas systems to identify and destroy an invading virus’s genetic material. But viruses aren’t helpless and can deploy count ...  Show more

Glaciers like the ones in Greenland are melting due to climate change, causing global sea levels to rise. That we know. But these glaciers are also moving. What we don't know is just how these two processes – melting and movement – interact and ultimately impact how quickly sea l ...  Show more

There's always a moment of intense isolation when Jessica Mejía gets dropped off on the Greenland ice sheet for a multi-week research stint. "You know you're very much alone," said Jessica, a postdoctoral researcher in glaciology at the University of Buffalo. Glaciers such as tho ...  Show more