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Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

Explanation: Sometimes we can all use a little help from a friend . NASA 's Neil Gehrels Swift Observatory needs a boost to stay in orbit after almost 22 years of service. This video shows an artist's visualization of the Swift Boost Mission : The Katalyst 's LINK spacecraft was launched aboard a Northrop Grumman Pegasus XL rocket on July 3 and it is now en route to rendezvous with Swift and boost it to a higher orbit over the course of the next several months . This type of maneuver has never been attempted before . If successful, it will be the technology demonstration of a new key capability to extended the lifetime of spacecraft in low Earth orbit, whose orbits decay over time . Swift has an array of instruments that observe the most energetic explosions in the Universe in gamma-rays, X-rays and ultraviolet, and the unique ability to repoint in their direction within tens of seconds . Astronomers around the world, and indeed all fans of cosmic explosions, are anxiously hoping for a successful mission!

Swift Boost Mission

Explanation: Sometimes we can all use a little help from a friend . NASA 's Neil Gehrels Swift Observatory needs a boost to stay in orbit after almost 22 years of service. This video shows an artist's visualization of the Swift Boost Mission : The Katalyst 's LINK spacecraft was launched aboard a Northrop Grumman Pegasus XL rocket on July 3 and it is now en route to rendezvous with Swift and boost it to a higher orbit over the course of the next several months . This type of maneuver has never been attempted before . If successful, it will be the technology demonstration of a new key capability to extended the lifetime of spacecraft in low Earth orbit, whose orbits decay over time . Swift has an array of instruments that observe the most energetic explosions in the Universe in gamma-rays, X-rays and ultraviolet, and the unique ability to repoint in their direction within tens of seconds . Astronomers around the world, and indeed all fans of cosmic explosions, are anxiously hoping for a successful mission!

Date July 8, 2026
Credit Image Credit: Katalyst Space
Text: Cecilia Chirenti ( NASA GSFC , UMCP , CRESST II )
Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
A service of: ASD at NASA / GSFC,
NASA Science Activation & Michigan Tech. U.