ESA's Cluster quartet prepares for its final Tango

The European Space Agency's Cluster quartet is preparing for its final bow after Samba reentered Earth's atmosphere, with Tango due to follow tonight. Samba lost contact at 21:26 UTC on August 31 and reentered at 21:39:38 UTC. Tango is expected to follow at 21:30:31 UTC tonight. The other two satellites, Rumba and Salsa, reentered in 2025 and 2024, respectively. The final reentries close the book on a prodigiously long-lived quartet that exceeded even optimistic expectations, thanks in no small