Its name is a combination of the first letters of the names Armstrong, Aldrin and Collins. It was first brought back in 1969 from Tranquility Base on the Moon.
An estimated 560,000 to 1,400,000 barrels of oil leak into the Gulf of Mexico each year, from natural sources. Fortunately, most of this oil is degraded by oil-eating bacteria
Angmar, Dolmed, Doom, Erebor, Misty or Moria Montes... Saturn's moon also harbours small hills (or colles) named after J.R.R. Tolkien's characters, such as Bilbo, Gandalf or Faramir
It happens if a fossil is discovered in a sediment layer that doesn't match the animal's date of death. This means that the fossil moved while the animal had been dead for a long time :)
