A failed Russian spacecraft will plummet back to Earth next month, and more than two dozen chunks of it could make impact, along with a load of toxic fuel. The expected crash date of the Phobos-Grunt probe is mid-January, and nearly 400 pounds of fragments could survive re-entry, reports Fox News. The Russian probe launched last month—it was going to land on one of the moons of Mars and collect samples— but failed to hit its planned trajectory. It's too early to predict where it will come down, but NASA's best bet, as usual, is in an ocean somewhere. (More Mars stories.)