The Universe's Lost Lithium
This crowded photograph shows a star cluster called Messier 54. For more than two hundred years after its discovery, Messier 54 was thought to be similar to the other Milky Way globular clusters. But in 1994 it was discovered that it actually lies in an entirely separate galaxy, more than three times as far from Earth as the centre of our Galaxy!
Credit:
ESO
Share:
Images
Wallpapers
The EU-UNAWE website was produced by funding from the European Community's Seventh Framework Programme ([FP7/2007-2013]) under grant agreement n° 263325