Monday, 4 January 2010

Nunataks in Greenland



Nunataks (ice-free summits ) in East Greenland.

A Nunatak is an exposed peak, not covered with ice or snow, in an ice field or glacier. Nunataks are reference points in glaciers or ice caps.
As the ice cap recedes, these rock formations are more frequently visible. They are more typical of the northeast coast.

Gunnbjørn Fjeld is a nunatak.

Gunnbjørn Fjeld, peaking at 3733 m, is Greenland's highest mountain: on the east coast, south of Ittoqqortoormiit (Scoresbysund) - a rocky peak protruding through glacial ice.
Location 68° 55′ N 29° 54′ W

Saturday, 2 January 2010

Into 2010 with M101


Big, beautiful spiral galaxy M101 is one of the last entries in Charles Messier's famous catalog. About 170,000 light-years across, this galaxy is huge, almost twice the size of our own Milky Way Galaxy.

M101 lies within the boundaries of the northern constellation Ursa Major, about 25 million light-years away.

NASA