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Tangoing pairs of hungry supermassive black holes grow in number

Space

Tangoing pairs of hungry supermassive black holes grow in number

The discovery of more of these deadly duos through a fresh data-sifting technique raises the hope that their secret recipe might soon be unlocked

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A number of sperm cells

Space

Mouse sperm sent into space produces healthy IVF babies

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Astronomers scramble as ‘alien megastructure’ star dims again

Space

Astronomers scramble as ‘alien megastructure’ star dims again

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LIGO could detect gravitational waves’ permanent space-time warp

Space

LIGO could detect gravitational waves’ permanent space-time warp

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Titan’s riverbeds show a terrain built more like Mars than Earth

Space

Titan’s riverbeds show a terrain built more like Mars than Earth

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plasma plane

Space

Plasma jet engines that could take you from the ground to space

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Space

No crew planned for NASA's first Space Launch System mission

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Stars can start shining at a smaller mass than we thought

Space

Stars can start shining at a smaller mass than we thought

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MetLife Tower

Space

Final demands: We explore sci-fi's unworldly money troubles

Culture

What vision of doom made Hawking seek a faster Earth exit plan?

Space

What vision of doom made Hawking seek a faster Earth exit plan?

Stephen Hawking now says humanity must colonise other worlds within a century, rather than 1000 years, to ensure survival. Why the rush, asks Dirk Schulze-Makuch

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Space

Watch Cassini's first two dives between Saturn and its rings

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Space

Cassini takes first plunge between Saturn's rings

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Space

NASA might run out of space suits before it quits the ISS

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Space

Marvel at the images from Cassini's first Grand Finale orbit

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