GALEX

An x-ray source on sky-map.org

Prague (Wikipedia) Prague (/ˈprɑːɡ/ PRAHG; Czech: Praha [ˈpraɦa] is the capital and largest city of the Czech Republic and the historical capital of Bohemia. Situated on the Vltava river, Prague is home to about 1.4 million people. The city has a temperate oceanic climate, with relatively warm summers and chilly winters.

GALEX (Wikipedia) Galaxy Evolution Explorer (GALEX or Explorer 83 or SMEX-7) was a NASA orbiting space telescope designed to observe the universe in ultraviolet wavelengths to measure the history of star formation in the universe. In addition to paving the way for future ultraviolet missions, the space telescope allowed astronomers to uncover mysteries about the early universe and how it evolved, as well as better characterize phenomena like black holes and dark matter. The mission was extended three times over a period of 10 years before it was decommissioned in June 2013. GALEX was launched on 28 April 2003 and decommissioned in June 2013.