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NASA, SpaceX to study ways to boost Hubble telescope's orbit

  • 30 Sep 2022

Elon Musk's SpaceX plans to fund a study with NASA to examine ways to use the space company's Dragon capsule to raise the Hubble Space Telescope's orbital altitude, which would extend its useful life, agency officials say.

Hubble Space Telescope has been a workhorse cosmic observatory since its launch in 1990, enabling important discoveries such as the age of the universe and the moons of Pluto. ( Reuters Archive )

NASA and SpaceX have agreed to study the feasibility of awarding Elon Musk's company a contract to boost the Hubble Space Telescope to a higher orbit, with a goal of extending its lifespan, the US space agency said.

"A few months ago, SpaceX approached NASA with the idea for a study whether a commercial crew could help re-boost our Hubble spacecraft," NASA's chief scientist Thomas Zurbuchen told reporters on Thursday, adding the agency had agreed to the study at no cost to itself.

He stressed that the agreement with SpaceX is only for a SpaceX-funded study, and does not represent agency plans to service the telescope later on. 

The renowned observatory has been operating since 1990 about 540 kilometres above Earth, in an orbit that slowly decays over time.

Hubble has no onboard propulsion to counter the small but still present atmospheric drag in this region of space, and its altitude has previously been restored during Space Shuttle missions.

The proposed new effort would involve a SpaceX Dragon capsule.

One of the main obstacles would be that the Dragon spacecraft, unlike the Space Shuttles, does not have a robotic arm and would need modifications for such a mission.

Important discoveries

SpaceX proposed the idea in partnership with the Polaris Program, a private human spaceflight venture led by payments billionaire Jared Isaacman, who last year chartered a SpaceX Crew Dragon to orbit the Earth with three other private astronauts.

"This would certainly fit within the parameters we established for the Polaris programme," Isaacman said in response to a question about whether re-boosting Hubble could be the goal for a future Polaris mission.

Asked by a reporter whether there might be a perception that the mission was contrived in order to give wealthy people tasks to do in space, Zurbuchen said, "I think it's only appropriate for us to look at this because of the tremendous value this research asset has for us."

Arguably among the most valuable instruments in scientific history, Hubble continues to make important discoveries, including this year detecting the farthest individual star ever seen — Earendel, whose light took 12.9 billion years to reach us.

It is currently forecast to remain operational throughout this decade, with a 50 percent chance of de-orbiting in 2037, said Patrick Crouse, Hubble Space Telescope project manager.

Hubble was serviced several times in the early 2000s during the US shuttle programme. Since that programme's retirement in 2011, astronomers have considered various ways to service the aging but still operational telescope. No plans have been developed.

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