› added 5 months ago

129

Til Lunar dust is potent to humans.

Read more nasa.gov

via reddit.com

l7QV TIL that ~1 in 5 people in the U.S. believe the world will end in their lifetime.
VXLQ TIL: Polonium is so deadly, it would only take 1/1,000,000'th (one millionth) of a gram to kill an average person.
vjvB TIL That Archimedes developed an anti-ship weapon called the Claw of Archimedes. It lifted a ship by the prow then dropped it, often causing the vessel to capsize or at least severely damaging it.
9YrGB TIL in February 14, 1990 as the Voyager 1 completed its primary mission and was leaving the Solar System, NASA commanded it to turn its camera around and take one last photograph of Earth across a great expanse of space, at the request of astronomer Carl Sagan. The Earth is seen as a Pale Blue Dot.
V6NZ TIL Asphalt pavement is not only America’s most recycled and reused material, it now is being recycled and reused at a rate over 99 percent.