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Nov 17, 2014 · By looking at the sky with X-ray and gamma-ray instruments, we collect important information in our attempt to address questions such as how the universe began and how it evolves, and gain some insight into its eventual fate.
- X-Ray Source Names
You've probably seen some very strange names for X-ray...
- NCTM & NSES Standards
X-ray Astronomy. The information and activities on this page...
- Quiz
[B] X-rays and gamma-rays are absorbed by the atmosphere [C]...
- Imagine The Universe
X-ray astronomy began after WWII when a large number of...
- Wilhelm Röntgen
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- Astronomer's Toolbox
Astronomy Across the Spectrum. Astronomers need to collect...
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Big Questions. Scientific discoveries often reveal new...
- X-Ray Source Names
X-ray astronomy is an observational branch of astronomy which deals with the study of X-ray observation and detection from astronomical objects. X-radiation is absorbed by the Earth's atmosphere, so instruments to detect X-rays must be taken to high altitude by balloons, sounding rockets, and satellites.
Jan 26, 2018 · X-rays are given off by objects and processes that are extremely hot and energetic, such as superheated jets of material near black holes and the explosion of a giant star called a supernova. Closer to home, our own Sun emits x-rays, as do comets as they encounter the solar wind.
- Carolyn Collins Petersen
X-ray astronomy, Study of astronomical objects and phenomena that emit radiation at X-ray wavelengths. Because Earth’s atmosphere absorbs most X-rays, X-ray telescopes and detectors are taken to high altitudes or into space by balloons and spacecraft. In 1949 detectors aboard sounding rockets.
- The Editors of Encyclopaedia Britannica
The following pages are designed to give an overview of what X-ray Astronomy is and what research is being carried out at the moment, both here and in other departments around the world. What is X-ray Astronomy and how do we do it. What we get from X-rays; The History of X-ray Astronomy; X-ray Satellites. XMM-NEWTON; CHANDRA; New Missions. X ...
What are X-rays? X-rays are a form of light, but much more energetic than the light detected by our eyes. The energy of an X-ray photon (light particle) is ~1000 times that of a photon of visible light. They are part of the electromagnetic spectrum which includes visible light, radio waves, microwaves and infra red radiation.
Dec 11, 2018 · Cameras use lenses to focus light onto a detector (like CCDs or film) to capture a picture. Telescopes like Hubble take images of objects in the cosmos. However, X-rays are so energetic (and have such a small wavelength) that they tend to pass through most things, including mirrors.
