UFO Sighting Breaking News! Huge UFO Visits ISS Emergency Evacuation.
Crew members returned safely to the U.S. segment of the International Space Station Wednesday afternoon after evacuating earlier in the day.
Concern about a possible ammonia coolant leak early Wednesday prompted the three astronauts to evacuate their portion of the complex, joining three cosmonauts in Russian modules while flight controllers studied telemetry to figure out if alarms were triggered by an actual leak, a sensor problem or some other issue, officials said Wednesday.
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