Messier 81 Wall Art including Frame Sizes:MEDIUM (20x30) This may be due to

This may be due to heating from increased sunlight

In celebration of the 31st anniversary of the launch of the NASA/ESA Hubble Space Telescope

and subsequently identified in Viking Orbiter images taken more than 20 years before

HII regions

is an ideal arena in which to study the interactions between these young stars and their parent molecular clouds

Messier 81 Wall Art including Frame Sizes:MEDIUM (20x30) This may be due toThe magnificent spiral arms of the nearby galaxy Messier 81 are highlighted in this NASA Spitzer Space Telescope image. Located in the northern constellation of Ursa Major (which also includes the Big Dipper), this galaxy is easily visible through binoculars or a small telescope. M81 is located at a distance of 12 million light years from Earth. Because of its proximity, M81 provides astronomers with an enticing opportunity to study the anatomy of a