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NASA Swift telescope heads for uncontrolled reentry after failed boost

NASA's Neil Gehrels Swift Observatory is expected to reenter Earth's atmosphere in an uncontrolled descent after a private rescue craft failed to raise its orbit, Space.com and The Associated Press report.

What's new
  1. KTLA, AP and 12 more are now reporting this
  2. New headline Was: “Space Force sees NASA Swift reentry around Friday after failed boost”
  3. Our desk updated its story
  4. The Associated Press is now reporting this
  5. New headline Was: “NASA ends Swift observatory mission as spacecraft falls toward Earth”
4 earlier updates
  1. Our desk updated its story
  2. Space.com is now reporting this
  3. New headline Was: “NASA ends Swift observatory science mission as orbit decays”
  4. Our desk updated its story

Wire reporting: (AP, via Global News)

NASA's Neil Gehrels Swift Observatory is expected to reenter Earth's atmosphere in an uncontrolled descent after a private rescue attempt failed to raise its orbit, according to Space.com and The Associated Press1,3.

Space.com reported Sunday that the time and place of reentry remain unclear, while The Associated Press, writing Saturday, said the U.S. Space Force had predicted a fall on or around Friday1,3,4.

Swift launched in November 2004 to hunt gamma-ray bursts and other high-energy events with three instruments, Space.com reported1. NASA said Oct. 20 that the orbit had decayed to about 171 miles (275 kilometers) and that the roughly 3,300-pound (1,500-kilogram) spacecraft could no longer offset atmospheric drag, after which the Penn State operations team commanded it to end science operations1.

The Associated Press reported that NASA hired Katalyst Space about a year ago for a rescue; the company's three-armed robot, Link, launched in July, came no closer than about 7 to 9 miles (12 to 15 kilometers), and reentered in September (AP, via Global News)3,4. Intense solar activity in recent years pulled the orbit down faster than expected, the AP report said3.

Most of the spacecraft is expected to burn up1,3. NASA mission chief scientist Brad Cenko told the AP that a few denser tungsten pieces and some mirror parts could survive, with any wreckage most likely falling in the ocean, though parts of Africa, Australia, India, Southeast Asia, and Central and South America lie in the reentry zone3,4.

Aerospace engineer Dean Sladen told Space.com Swift's orbit stays within about 21 degrees of the equator, a band that is mostly ocean1. "Most of it will melt and vaporize," Sladen said1. LeoLabs senior technical fellow Darren McKnight told Space.com the observatory should disintegrate enough not to pose a ground casualty hazard, though some X-ray and optical internals might survive1.

The AP report said Swift recorded more than 2,000 gamma-ray bursts and 1,400 exploding stars over 22 years and that NASA used it as an alert pathfinder for Hubble, Webb and other telescopes3.

Sources

  1. Space.comNASA's Swift space telescope is about to crash to Earth. Where will it fall?
  2. KTLANASA's Swift telescope expected to crash to Earth after failed rescue mission
  3. APNASA telescope is on the verge of plunging back to Earth after failed rescue mission
  4. (AP, via Global News)NASA telescope on the verge of plunging back to Earth after failed rescue missionAlso (AP, via KTLA), (AP, via The Seattle Times), (AP, via KHON2), (AP, via Stuff), (AP, via FOX31), (AP, via ClickOrlando), (AP, via WGN), (AP, via The Boston Globe), (AP, via ClickOnDetroit), (AP, via WPXI), (AP, via KSAT), (AP, via CityNews Toronto)

How it’s being reported

3 sources

First reported by ClickOrlandoClickOrlando

Where they agree

  • Swift will reenter uncontrolled after a failed orbital boost.
  • Most of the spacecraft is expected to burn up in the atmosphere.
  • Surviving pieces, if any, are more likely to fall in the ocean than on land.
  • The mission launched in 2004 to study gamma-ray bursts.

Where they differ

Timing of reentry

Ground-risk geography

Side by side

Each outlet's article broken down by our newsroom, in our own words. To read what they wrote, use the button under each one.

Space.comSpace.com

NASA's Swift space telescope is about to crash to Earth. Where will it fall?

When and where fragments might fall, and debris-risk context from LeoLabs and an aerospace engineer.

Space.com reports Swift's uncontrolled reentry is expected within days and that the exact time and landing band remain uncertain.

Leaves out The Katalyst Space robot rescue attempt and Space Force Friday timing cited in the AP report.

When and where fragments might fall, and debris-risk context from LeoLabs and an aerospace engineer.

What it reports

  • Swift launched in November 2004 to study gamma-ray bursts with three telescopes.
  • NASA said on Oct. 20 the orbit had decayed to about 171 miles and the craft could no longer fight drag.
  • The operations team at Penn State commanded the spacecraft to end operations before reentry.
  • LeoLabs' Darren McKnight said most of the observatory should break up enough not to pose a ground casualty hazard.
  • Engineer Dean Sladen said Swift's orbit stays within about 21 degrees of the equator, mostly ocean.

Leaves out The Katalyst Space robot rescue attempt and Space Force Friday timing cited in the AP report.

KTLAKTLA

NASA's Swift telescope expected to crash to Earth after failed rescue mission

Mass of the spacecraft and the failed rescue.

KTLA said a nearly 3,000-pound NASA telescope that studied cosmic explosions for more than two decades is expected to reenter in coming days after a failed rescue.

Mass of the spacecraft and the failed rescue.

What it reports

  • KTLA described the observatory as nearly 3,000 pounds and more than two decades old.
APAP

NASA telescope is on the verge of plunging back to Earth after failed rescue mission

Gives this outlet’s account of the story.

Gives this outlet’s account of the story.

AP has legal limits on how other sites show its reporting, so here you get its headline and our one-line take. For its full point of view, go straight to the source.

Same copy also at: (AP, via Global News) · (AP, via KTLA) · (AP, via The Seattle Times) · (AP, via KHON2) · (AP, via Stuff) · (AP, via FOX31) · (AP, via ClickOrlando) · (AP, via WGN) · (AP, via The Boston Globe) · (AP, via ClickOnDetroit) · (AP, via WPXI) · (AP, via KSAT) · (AP, via CityNews Toronto)