NASA Aims to Catch a Falling Space Telescope and Push It Back Up
NASA plans to use a robotic spacecraft to intercept and boost the aging Swift space telescope, which is losing altitude, back into a stable orbit. The mission aims to extend the life of the valuable observatory, which has been studying gamma-ray bursts and other cosmic phenomena for over two decades.
Background
- NASA's SWIFT (Neil Gehrels Swift Observatory) is a gamma-ray burst space telescope launched in 2004, far exceeding its planned 2-year mission, but now its orbit is decaying — it's slowly falling toward Earth.
- Instead of letting it burn up on re-entry (which could also damage the ISS), NASA plans a first-of-its-kind robotic repair/refueling mission — not yet funded — to rendezvous with Swift, grab it, and boost it back to a stable orbit.
- This is part of a broader push for on-orbit servicing: repairing and refueling satellites in space rather than building and launching replacements from scratch, which NASA has already been testing with commercial partners.
- Swift is still scientifically active (studying black holes, neutron stars, etc.), making the salvage effort worthwhile, and its death would leave astronomers without several key transient detection capabilities until next-gen replacements launch years from now.