image of astronauts in suits in space outside space station
Jasmin Moghbeli (top) and Loral O'Hara (bottom) performing maintenance outside the international Space Station.
  • A NASA astronaut accidentally lost a tool bag in space earlier this month.
  • The lost bag is not a threat, and will just burn up in Earth's atmosphere.
  • Astronauts have lost items in space many times before.

A NASA astronaut accidentally let go of a tool bag in space while conducting repairs on the International Space Station (ISS) earlier this month.

And it turns out that it's not the first time astronauts have accidentally released items into the abyss of space. It's happened at least four times before to NASA astronauts — here's a breakdown of what happened each time.