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A number of sperm cells

Space

Mouse sperm sent into space produces healthy IVF babies

The first experiment to test how space travel could affect mammals’ reproduction shows that pregnancy can smooth over DNA damage from cosmic radiation

News

Astronomers scramble as ‘alien megastructure’ star dims again

Space

Astronomers scramble as ‘alien megastructure’ star dims again

News

LIGO could detect gravitational waves’ permanent space-time warp

Space

LIGO could detect gravitational waves’ permanent space-time warp

News

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

News

plasma plane

Space

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

News

Space

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

News

Stars can start shining at a smaller mass than we thought

Space

Stars can start shining at a smaller mass than we thought

News

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?

News

Saturn

Space

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

New video puts those stunning first images from the Cassini spacecraft's Grand Finale into context in Saturn's cloud tops

News

Space

Cassini takes first plunge between Saturn's rings

News

Physics

Time crystals: A new state of matter that outlasts the universe

Features

Space

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

News

Space

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

News