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www.space.com | ||
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sci.esa.int
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| | | | | The history of X-ray astronomy spans no more than a few decades. Observations in this part of the spectrum had to await the 'space era', with rocket launchers that could carry X-ray telescopes above the Earth's atmosphere, opaque to this type of radiation. But the wait was worth it: the history of this discipline features pioneering technology and spectacular discoveries about cosmic objects near and far, with ESA playing an increasingly major role over the past 35 years. The history of X-ray astronomy spans no more than a few decades. Observations in this part of the spectrum had to await the 'space era', with rocket launchers that could carry X-ray telescopes... | |
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www.leonarddavid.com
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| | | | | The U.S. Air Force's X-37B miniature space plane has winged past 340 days of flight performing secretive duties during the program's fifth flight. | |
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principia-scientific.com
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| | | | | What is ultraviolet light? | |
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peerj.com
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| | | Michael Taylor is a PeerJ user. Bio: I am a computer programmer by vocation, but started to study palaeontology in my spare time in 2000. I got my Ph.D from the University of Portsmouth in 2009, and I'm now an honorary research associate at the University of Bristol. I work on the palaeobiology of sauropods -- the biggest and best of the dinosaurs -- with occasional forays into taxonomy and phylogenetic nomenclature. I am an advocate of open access, and more generally of transforming our archaic academic... | ||
