asteroids

Behold the Weird Physics of Double-Impact Asteroids

[ad_1] The best candidate for a binary crater on Earth today is the Lockne crater in Sweden and a smaller…

2 years ago

The End of Astronauts—and the Rise of Robots

[ad_1] How much do we need humans in space?  How much do we want them there?  Astronauts embody the triumph…

3 years ago