Here on Earth, February 2nd is Groundhog Day, but in space, it will mean a spacewalk for NASA astronauts aboard the International Space Station. Two of them will being a spacewalk at 8:15am Eastern Time on Thursday, to install hardware necessary for future power system upgrades on the ISS. The spacewalk is scheduled to last for about six and a half hours! If you want to watch it, NASA will stream the spacewalk live.