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Cases / Space debris and re-entry · Poland · 2025

Falcon 9 upper stage reentry over Poland

Nature's voice · report
No measurement of the harm done to me here is on record.
Did nature suffer? Not measured.
Not on record
  • The record does not name which of my species, waters, soils or forests were harmed.
What the record lacks: 3 none on record · 1 not measured See the gaps

A Falcon 9 second stage that could not perform its deorbit burn reentered uncontrolled on 19 February 2025, dropping fragments in Poland. A lidar in Germany recorded a roughly 10-fold lithium spike in the upper atmosphere about 20 hours after a reentry of the same stage.

about 30 kg vs about 80 g per dayLithium in one upper stage vs natural meteoric input worldwide
As stated in the reports reviewed.

Status As of the latest sources reviewed (study listed 2026): fragments recovered in Poland; no claim, ruling or operator statement found.

What?
An uncontrolled Falcon 9 upper-stage reentry dropped debris in Poland and was followed by a measured lithium spike in the upper atmosphere. Smithsonian Magazine
Where?
Over Poland (debris at Komorniki, Wiry, Śliwno, Szamotuły, Łowyń); lithium recorded at Kühlungsborn, Germany. Smithsonian Magazine
When?
19 February 2025, 04:46–04:48 over Poland; lithium spike about 20 hours after a reentry west of Ireland. Smithsonian Magazine
Who?
Gained
None on record
Lost
None on record
Harmed
None on record
Why?
A propellant leak prevented the stage's deorbit burn. Smithsonian Magazine
How?
The stage reentered uncontrolled; a lidar detected the plume as a lithium increase at about 96 km. University repository
5 of 6 questions answered from the record · open: who

What happened

The record, in order.

A Falcon 9 second stage (Starlink 11-4, launched 1 February 2025) suffered a propellant leak that prevented its deorbit burn. It reentered uncontrolled on 19 February 2025.

The Polish Space Agency (POLSA) recorded the reentry over Poland between 04:46 and 04:48 on 19 February 2025. Fragments were found at Komorniki (a tank about 1.5 × 1 m behind a warehouse), Wiry, Śliwno and Szamotuły, and later at Łowyń.

A study first circulated as a preprint in 2025 and listed as Communications Earth & Environment 7:161 (2026) reported the first ground-based detection of a reentry plume. About 20 hours after the stage reentered west of Ireland, a lidar at Kühlungsborn, Germany, recorded a roughly 10-fold lithium spike at about 96 km altitude.

The reports state that one upper stage holds about 30 kg of lithium, against a natural meteoric lithium input of about 80 g per day worldwide.

  1. 2025Starlink 11-4 launched on a Falcon 9 (1 February); propellant leak prevents deorbit burn; uncontrolled reentry (19 February) with debris found in Poland; lidar at Kühlungsborn records lithium spike about 20 hours later
  2. 2026Lithium-plume study listed as Communications Earth & Environment 7:161

How it looked

What was shown, beside what was recorded.

Shown

    Recorded

    • POLSA recorded the reentry over Poland on 19 February 2025 between 04:46 and 04:48; fragments were found at Komorniki, Wiry, Śliwno, Szamotuły and later Łowyń.
    • A lidar at Kühlungsborn recorded a roughly 10-fold lithium spike at about 96 km about 20 hours after the stage reentered west of Ireland.

    In court and with insurers

    Every proceeding and every insurer decision on record.

    Lawsuits and rulings

    No court case on record. No court has ruled on this case.

    Insurers

    No insurer decision on record.

    What nature saw

    Outcomes measured on the ground, and nature's note.

    Nature's report opens this page. Below: further outcomes measured on the ground.

    Lithium at about 96 km
    about 10-fold spike
    Recorded by lidar at Kühlungsborn, Germany, about 20 hours after the reentry
    Lithium in one upper stage
    about 30 kg
    Natural meteoric input is about 80 g per day worldwide

    What we don't know

    Undisclosed, unproven, untried: recorded as data.

    Nature

    • Not measured Harm to nature: No independent ecological evaluation is on record.

    Court

    Record

    • None on record Ecological effects of the lithium plume: the sources reviewed report the detection but no assessment of effects.
    • None on record Operator response and any claim, ruling or liability finding: none found in the sources reviewed.

    Did the harm stop?

    The sources reviewed do not say whether practice changed after the reentry.

    Who paid?

    Not on record: no cost or claim is stated in the sources reviewed.

    Sources

    Voices on record: — Company or project— Government and regulators— Courts✓ Press and investigations— Communities and civil society✓ Researchers

    Press and investigations

    Connected cases

    Related matters, and cases linked to this one through the same organisations, with the role each played in both.