航天器再入

NASA's Van Allen Probe A plunged back into Earth's atmosphere this week years earlier than planned after solar-driven drag accelerated its decay. Officials say most of the 1,323... 三月 13, 2026

NASA warns that the 1,300-pound Van Allen Probe A is expected to re-enter Earth's atmosphere today after intensified solar activity accelerated its orbital decay. The agency say... 三月 11, 2026

Artemis II, slated for as early as February 2026, is a 10-day crewed shakedown that will put NASA's SLS rocket and Orion spacecraft through deep-space navigation, life-support a... 一月 27, 2026

NASA has postponed an ISS spacewalk and is planning an early return for Crew‑11 after an unspecified medical concern involving one astronaut. The agency says the crewmember is s... 一月 09, 2026

As launches and constellations surge, broken satellites and fragments are crowding low Earth orbit. New research and agency reports lay out technical fixes, a circular economy a... 十二月 09, 2025

China will send the damaged Shenzhou-20 return capsule back to Earth uncrewed for hands-on inspection after a suspected millimetre-scale debris strike cracked its window and for... 十二月 03, 2025

After a suspected debris strike left a Shenzhou return capsule damaged, China conducted an improvised crew swap that returned one trio to Earth — but left the newly arrived crew... 十一月 18, 2025