Is Sofia a radio telescope proper? - Astronomy gsusigmanu.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from gsusigmanu.org Daily Mail and Mail on Sunday newspapers.
Chandra X-ray Observatory, U.S. satellite, one of the National Aeronautics and Space Administration (NASA) fleet of “Great Observatories” satellites, which is designed to make high-resolution images of celestial X-ray sources. It has been in operation since 1999.
A Lawmaker's Guide to Balancing the Federal Budget heritage.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from heritage.org Daily Mail and Mail on Sunday newspapers.