Controlling self-doping in magnetite with temperature

One of the most abundant iron-containing minerals on Earth, and also the oldest known magnetic material, is magnetite, Fe3O4. Magnetite has applications in many fields, such as the study of paleomagnetism—magnetism in rocks ...

Distant quasar J0439+1634 explored in X-rays

Using ESA's XMM-Newton spacecraft, an international team of astronomers has conducted X-ray observations of the most distant known gravitationally lensed quasar—J0439+1634. Results of the study, published December 20 on ...

A new concept for high-performance detectors

When the Department of Energy's SLAC National Accelerator Laboratory turned on the world's first hard X-ray free-electron laser in 2009, it marked the beginning of a new era in science—one where researchers could directly ...

Nanocomposite provides picture-perfect X-ray capture

A nanocomposite that absorbs X-rays and then, with nearly perfect efficiency, re-emits the captured energy as light, could help to improve high-resolution medical imaging and security screening. The material's near-100 percent ...

Mini-jet found near Milky Way's supermassive black hole

Our Milky Way's central black hole has a leak. This supermassive black hole looks like it still has the vestiges of a blowtorch-like jet dating back several thousand years. NASA's Hubble Space Telescope hasn't photographed ...

NASA's newest X-ray telescope rockets into orbit

NASA's newest X-ray observatory rocketed into orbit Thursday to shed light on exploded stars, black holes and other violent high-energy events unfolding in the universe.

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