What Is Satellite Re-entry?
Re-entry occurs when an orbiting object loses enough altitude that it enters the denser layers of Earth's atmosphere and is unable to maintain orbit. Most objects burn up completely during re-entry due to the extreme heat generated by atmospheric friction. Larger objects — rocket bodies, defunct satellites — can sometimes survive partially and reach the ground.
Current Re-entry Predictions
Orbital Radar tracks upcoming re-entries using TIP (Tracking and Impact Prediction) messages from the US Space Force. These predictions narrow as the re-entry window approaches — from days to hours to minutes.
Use the Orbital Radar live tracker and check the Orbital Events panel for current re-entry predictions. The events feed shows predicted time windows, the decaying object's identity, and its current orbital parameters.
Famous Re-entries
Notable re-entries include Skylab (1979), Mir (2001), and multiple uncontrolled Chinese Long March 5B rocket stages. Most re-entries are routine — dozens of objects re-enter every week, overwhelmingly burning up without incident. The ones that make headlines are typically large, uncontrolled re-entries where the landing zone cannot be precisely predicted.
Is Re-entry Dangerous?
For any individual on the ground, the risk from re-entering debris is extraordinarily low — far less than being struck by lightning. However, as the number of objects in orbit grows, so does the frequency of re-entries. The topic of responsible deorbiting practices is an active area of policy discussion.
See our Space Debris Statistics page for broader context on the debris environment.