On April 27, 1961, NASA launched Explorer 11, a satellite that contained the first gamma ray telescope to go to space. [‘On ...
High above Earth, in the thin air of the Tibetan Plateau, a giant observatory ...
On this day, April 27, 1961, the National Aeronautic and Space Administration (NASA) launched the Explorer 11 satellite into ...
The Fe Kα line, or iron Kα line, is often used in astronomical research to understand the physical composition of ...