New NASA astronauts graduate, eying moon—and Mars

After two years of rigorous training, ten Americans officially became astronauts on Tuesday, and are now eligible for planned NASA missions to the International Space Station, the moon, and—if all goes well—to Mars.

NASA tests the new Starship docking system

The Apollo Program delivered 12 American astronauts to the surface of the moon. But that program ended in 1972, and since then, no human beings have visited. But Artemis will change that. And instead of just visiting the ...

Ice shell thickness reveals water temperature on ocean worlds

Decades before any probe dips a toe—and thermometer—into the waters of distant ocean worlds, Cornell astrobiologists have devised a novel way to determine ocean temperatures based on the thickness of their ice shells, ...

Image: Hubble views IC 3476, an active star-forming galaxy

This NASA/ESA Hubble Space Telescope image features IC 3476, a dwarf galaxy that lies about 54 million light-years from Earth in the constellation Coma Berenices. While this image does not look very dramatic—we might say ...

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