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Unlike lithium, sodium is cheap and abundant ...

Elon Musk's Starlink business could soon be competing with Jeff Bezos's Kuiper ...

That will be bad for both countries ...

Some scientists think so. Others doubt the cells even exist ...

One way to fix an accidentally altered climate is to alter it again deliberately ...

It will be the world's biggest optical telescope by far--and a powerful time machine ...

Coins are fair. Their tossers, less so ...

Embryoids promise many benefits, but pose tricky ethical questions ...

But only for four seconds at a time ...

One insect's leavings is another's dinner ...