• Summer Triangle dominates the night sky in Northern Hemisphere

    ByChiffre

    During the summer sky watchers in the Northern Hemisphere can observe the famous "Summer Triangle" which form stars Vega, Altair an Deneb. Actually, the triangle can be seen from the mid-northern latitudes throughout the year, but it is especially

  • ROSAT decay update

    ByChillymanjaro

    The massive ROSAT X-ray space telescope continues to descend toward Earth. Latest estimates place the re-entry around noon Universal Time on Oct. 23rd. Uncertainties exceed 10 hours, which makes it impossible to say exactly where ROSAT will re-enter. Many sky watchers