... In August 2006, NASA's Swift satellite spotted a bright object originally observed by the ROSAT satellite in the 1990s. The source, shown above in this artist's illustration, has now been identified as an isolated neutron star very close to Earth. ...
... Hints of the bubbles' edges were first observed in X-rays (blue) by ROSAT, a Germany-led mission operating in the 1990s. The gamma rays mapped by Fermi (magenta) extend much farther from the galaxy's plane. ...
... The key point is that until our Swift survey, no one was able to refine the X-ray positions of large numbers of ROSAT sources to the point where it became clear which ROSAT sources were 'missing' their optical counterparts." ...
... By combining the Planck data with archival X-ray observations from the German satellite Rosat, astronomers found that the gas in the bridge is approximately the same temperature as the gas in the two clusters т?? about 140 million degrees Fahrenheit (80 ...
... Data from Chandra, NASA's Swift satellite, the European Space Agency's XMM-Newton, and the German ROSAT observatory revealed a bright source of X-rays that has remained steady during observation from 1995 to 2007. ...
... from the disk around the black hole at a distance of 10 billion light years: by chance the region was scanned by the satellite ROSAT, and at the extreme end of the visual field an X-ray source was discovered the position of which corresponds with the ...
... No sign of the ULX was found in historical X-ray images made with Einstein Observatory in 1980, ROSAT in 1994, the European Space Agency's XMM-Newton in 2003 and 2008, or NASA's Swift observatory in 2005. ...