NASA Seeks Proposals for Reboosting the Hubble Space Telescope

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The Hubble Space Telescope "will plunge back into the atmosphere in the early-to-mid-2030s," reports Ars Technica. So now NASA has released a Request For Information (RFI) "asking commercial companies for ideas on how to reboost, service, or a controlled disposal of Hubble."Specifically, NASA is looking for information about companies' current and near-term capabilities for capturing Hubble and boosting it to an altitude of at least 373 miles (600 km), enhancing the telescope's performance, or guiding Hubble to a controlled reentry. "The requirement includes that the boost and/or servicing mission must not harm the HST and that this mission is expected to occur by 2032," NASA wrote in the RFI. The contractor would be responsible for providing the launch vehicle, servicing spacecraft, mission operations, and "crew if applicable." NASA is not committing to buying a Hubble rescue mission, but officials want to know who might be interested in mounting such a mission, how much it would cost, and which companies would have a realistic shot at reaching Hubble before it falls out of orbit and burns up on reentry. Orbital dynamicists currently predict that it will likely happen in 2033 or 2034 without intervention, but reentry forecasts can change based on solar activity... A reboost to NASA's requirement of 373 miles (600 km) would likely keep Hubble in orbit for at least 25 more years. "NASA last raised the orbit of Hubble in 2002," the article points out, "when the Space Shuttle Columbia visited the observatory for a servicing mission."The final shuttle servicing flight in 2009 did not reboost the telescope's orbit, and with the retirement of the shuttle fleet two years later, Hubble has steadily lost altitude with no way to stave off eventual destruction... NASA's newer flagship observatories, sometimes described as successors to Hubble, are not actually one-for-one replacements. Hubble is tuned to observe the Universe in visible and ultraviolet light, while the Webb and Roman telescopes peer deeper into the infrared Universe. Astronomers will likely have to wait for the launch of NASA's Habitable Worlds Observatory in the 2040s for an improvement on Hubble's visible and ultraviolet vision.Read more of this story at Slashdot.