Engineers Developing "Self-Eating" Rockets That Don't Leave A (Space) Mess

Engineers Developing “Self-Eating” Rockets That Don’t Leave A Mess

You probably can’t tell from all the way down here, but Earth is developing a pretty big space debris problem. In fact, Ziggy tells me that, right now, there are at least 17,852 man-made objects floating around up there, and those are just the ones we can track. Start counting the smaller pieces of debris …

If Aliens Are Out There, Maybe They Should Run

If Aliens Are Out There, Maybe They Should Run

Where are all the aliens? asks Russian theoretical physicist Alexander Berezin in his new paper, titled “‘First in, last out’ solution to the Fermi Paradox.” It’s a question we’ve long pondered, and perhaps one of the greatest — in a universe so vast, and with so many seemingly habitable planets, why have we yet to …