China’s first space station, Tiangong-1, abandoned and out of control, is expected to drop out of orbit around this weekend, with pieces of it likely to survive the fiery re-entry and crash somewhere on Earth.

Don’t worry.

According to space debris experts, the chances that you personally will be hit by of a chunk of space metal are essentially zero — less than one in a trillion.

“It’s really very, very, very tiny odds,” said Andrew Abraham, an analyst leading efforts to track and predict the demise of the space station at the Aerospace Corporation, a nonprofit that performs research and analysis for the United States Air Force. “I certainly would worry about things like crossing the street far more than debris from Tiangong.”

The projections have remained steady in recent days, with uncertainties shrinking. Still, it is impossible to determine where the station, which is currently circling the Earth 16 times a day, will come down. Experts will not have a good idea until the final hours.