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.

Are fears of saying 'no' overblown?

Everyone has been there. You get invited to something that you absolutely do not want to attend—a holiday party, a family cookout, an expensive trip. But doubts and anxieties creep into your head as you weigh whether to ...

Astronomers discover first population of binary stripped stars

Astronomers at the University of Toronto have discovered a population of massive stars that have been stripped of their hydrogen envelopes by their companions in binary systems. The findings, published in Science, shed light ...

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Pilot

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