Earth – An out of control 24-ton Chinese rocket is set to reenter the Earth’s atmosphere this weekend, and experts don’t really know where it will make impact.

The rocket is expected to enter Earth’s atmosphere “around May 8,” Defense Department spokesperson Mike Howard said.  The trajectory is being tracked by the US Space Command, but the exact entry point into the Earth’s atmosphere can’t be pinpointed until within hours of reentry.

“The risk that there will be some damage or that it would hit someone is pretty small — not negligible, it could happen — but the risk that it will hit you is incredibly tiny. And so I would not lose one second of sleep over this on a personal threat basis,” Jonathan McDowell, an astrophysicist at the Astrophysics Center at Harvard University, told CNN this week.

The “risk zone” is thought to be America south of New York, all of Africa and Australia, parts of Asia south of Japan and Europe’s Spain, Portugal, Italy and Greece. “We expect it to reenter sometime between the eighth and 10th of May. And in that two-day period, it goes around the world 30 times,” McDowell told CNN.