The central bulge of spiral galaxy NGC 2903 is composed of old stars giving a yellowish appearance, while the spiral arms host younger stars denoted by their blue-light emission and star formation regions denoted by their red-light emission.
Saturday, February 9, 2013
Spiral Galaxy NGC 2903
The central bulge of spiral galaxy NGC 2903 is composed of old stars giving a yellowish appearance, while the spiral arms host younger stars denoted by their blue-light emission and star formation regions denoted by their red-light emission.
Saturday, February 2, 2013
Stonehenge Up Close
Stonehenge is a prehistoric monument in Wiltshire, England, about 2 miles (3.2 km) west of Amesbury and 8 miles (13 km) north of Salisbury. One of the most famous sites in the world, Stonehenge is the remains of a ring of standing stones set within earthworks.
Subscribe to:
Posts (Atom)