NASA Ingenuity Mars Helicopter Prepares for First Flight

Up to 99% of Mars’ Water May Still Be Trapped in Planet’s Crust – Not Lost to Space As Long Theorized

NASA Ingenuity Mars Helicopter Prepares for First Flight

Robot garbage hunters are coming to clean up space. NASA estimates space debris to weigh more than 8,000 metric tons, and consist of more than 500,000 pieces larger than a centimeter in diameter.