Skeptophilia

Most of you probably know about the Drake Equation , a way to estimate the number of intelligent civilizations in the universe.  The Equatio...

I'm currently reading planetary scientist Sarah Stewart Johnson's wonderful book The Sirens of Mars , about the search for signs of ...

One of the problems faced by people who would dearly love to find unequivocal proof of extraterrestrial life is: space is big. No, not big. ...

After yesterday's post about mysterious explosions in distant galaxies, today I want to look at a colossal explosion that happened much,...