Those “secure” door locks you see everywhere (eg in airports and the like).
I recommend reading this whole “Thank You Captain Obvious” collection.
The outer surface of this star is almost pure oxygen. Wow.
The funniest part about this prank happens if you click the Buy Now button multiple times. 🙂
This may be an April 1st joke, but it’s awesome.
Pluto is really, really, really far away and inverse-square law means that the transmitter signal is really weak by…