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The orbit of the Kosmos 482 (Russian: Космос 482 meaning Cosmos 482) lander probe is decaying and it is expected to reenter Earth’s atmosphere some time from May 9 to May 10, 2025, centered on roughly May 10 at 09:30 (07:30 UTC).

Because the probe was designed to withstand entry into the Venus atmosphere, it is possible the probe (or parts of it) will survive reentry at Earth and reach the surface. Kosmos 482, launched March 31, 1972, at 04:02:33 UTC, was an attempted Venus probe which failed to escape low Earth orbit. Its landing module, which weighs 495 kilograms, is highly likely to reach the surface of Earth in one piece as it was designed to withstand 300 G’s of acceleration and 100 atmospheres of pressure. Beginning in 1962, the name Kosmos was given to Soviet spacecraft which remained in Earth orbit, regardless of whether that was their intended final destination. The designation of this mission as an intended planetary probe is based on evidence from Soviet and non-Soviet sources and historical documents. Typically Soviet planetary missions were initially put into an Earth parking orbit as a launch platform with a rocket engine and attached probe. The probes were then launched toward their targets with an engine burn with a duration of roughly four minutes. If the engine misfired or the burn was not completed, the probes would be left in Earth orbit and given a Kosmos designation. Kosmos 482 was launched by a Molniya booster on March 31, 1972, four days after the Venera 8 atmospheric probe and may have been similar in design and mission plan. After achieving an Earth parking orbit, the spacecraft made an apparent attempt to launch into a Venus transfer trajectory. It separated into four pieces, two of which remained in low Earth orbit and decayed within 48 hours into south New Zealand and two pieces (presumably the payload and detached engine unit) went into a higher 210 km × 9,800 km, 52 deg inclination orbit.

An incorrectly set timer caused the Blok L stage to cut off prematurely, preventing the probe from escaping Earth orbit. The first of these pieces, four red-hot 13.6-kilogram titanium alloy spheres, with a diameter of 38 centimetres, landed within a 16-kilometre (10 mi) radius of each other just outside Ashburton, New Zealand at 1:00 AM on April 3, 1972. The spheres scorched holes in crops and made deep indentations in the soil, but no one was injured. A similarly shaped object was discovered near Eiffelton, New Zealand, in 1978. Space law required that the space junk be returned to its national owner, but the Soviets denied knowledge or ownership of the satellite. Ownership therefore fell to the farmer upon whose property the satellite fell. The pieces were thoroughly analyzed by New Zealand scientists which determined that they were Soviet in origin because of manufacturing marks and the high-tech welding of the titanium. The scientists concluded that they were probably gas pressure vessels of a kind used in the launching rocket for a satellite or space vehicle and had decayed in the atmosphere. The last remaining piece in orbit, the descent craft, reentered on 10 May, somewhere between 51.95 degrees north or south latitude. As of 10 May 2025, the European Space Agency reported that the descent craft was not detected by radar during a predicted pass over Germany at 07:32 UTC (09:32 CEST). Based on this, ESA concluded that reentry most likely already occurred earlier that morning. Later that day, the Russian space agency Roscosmos stated that the lander had harmlessly impacted the eastern Indian Ocean at 06:24 UTC west of Jakarta, Indonesia. The impact time and location given by Roscosmos may not be fully accurate.

Old Soviet spacecraft to fall to Earth in early May 2025

Cosmos 482 landing module – Zichtbare passages

Objekt Live Tracking

More than 50 years after trying to reach Venus, a failed Soviet spacecraft is about to return to Earth

Kosmos 482 Descent Craft reentry forecasts