This planet is 15 million years overdue for an asteroid strike like the one that killed the dinosaurs.

What if an asteroid were to strike planet Earth? What could we possibly do to prevent it? However many guys we have working on this problem, it can't possibly be enough.

Imagine if the dinosaurs had tried picturing the rulers of their planet 100 million years hence. They'd undoubtedly envision these creatures as... dinosaurs! Conceiving of aliens as polished versions of ourselves is appealing, but unconvincing.

Dinosaurs are extinct today because they lacked opposable thumbs and the brainpower to build a space program.

If I do dream, would all my wealth would wake me! If I do wake, some planet strike me down, that I may slumber in eternal sleep!

People in the mass media tend more and more every day to look and act like elected and appointed officials.