Spiral Galaxies Shimmer in Hubble Telescope's 27th Birthday Photos

The aging space observatory, which launched into low Earth orbit on April 24, 1990, kicked off this year's birthday celebration with some dazzling new views of a pair of spiral galaxies.

A disturbed galactic duo

The galaxies in this cosmic pairing, captured by the Wide Field Imager on the MPG/ESO 2.2-metre telescope at the La Silla Observatory in Chile, display some curious features, demonstrating that each member of the duo is close enough to feel the distorting gravitational influence of the other. The gravitational tug of war has warped the spiral shape of one galaxy, NGC 3169, and fragmented the dust lanes in its companion NGC 3166. Meanwhile, a third, smaller galaxy to the lower right, NGC 3165, has a front-row seat to the gravitational twisting and pulling of its bigger neighbours.