NASA, ESA, Hubble Heritage Team

To celebrate the 21st anniversary of the Hubble Space Telescope's deployment into space, astronomers pointed Hubble's eye at an especially photogenic pair of interacting galaxies called Arp 273. The larger of the spiral galaxies, known as UGC 1810, has a disk that is distorted into a roselike shape by the gravitational tidal pull of the companion galaxy below it, UGC 1813. This image, released April 20, is a composite of image data gathered by Hubble's Wide Field Camera 3.

Raise your glasses as Hubble turns 21

Jonathan Woods writes: The night sky is full of wonders, and Hubble brought us another gem to celebrate its 21st birthday.

Marking the anniversary of its deployment into space, astronomers pointed the space telescope's powerful lens at a pair of interacting galaxies called Arp 273. See highlights from Hubble

Since its launch on April 24, 1990 from space shuttle Discovery, Hubble has sent back stunning images from the far reaches of our solar system.

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