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Astronomers have spent decades hunting for dark matter by looking for light that isn’t there — and that strategy has mostly failed. 

Now, a team of researchers has tried something radically different. Instead of searching the sky, they…

The icy moon Europa transits Jupiter tonight, followed by its shadow. Now past opposition, moons and their shadows are well separated.

Beneath Earth’s surface lies a kingdom of undiscovered microscopic life. These “intraterrestrials” survive in some of the harshest conditions on the planet — and scientists are hunting for these microbes.

In this excerpt from “