NASA’s Tiny BurstCube Mission Launches to Study Cosmic Blasts

NASA’s Tiny BurstCube Mission Launches to Study Cosmic Blasts

When a gamma ray enters one of BurstCube’s four detectors, it encounters a cesium iodide layer called a scintillator, which converts it into visible light. The light then enters another layer, an array of 116 silicon photomultipliers, that converts it into a pulse of electrons, which is what BurstCube measures. For each gamma ray, the … Read more

Gamma-ray Bursts: Harvesting Knowledge From the Universe’s Most Powerful Explosions – NASA Science

Gamma-ray Bursts: Harvesting Knowledge From the Universe’s Most Powerful Explosions – NASA Science

Afterglows emit radio, infrared, optical, UV, X-ray, as well as gamma-ray light, which provides more data about the original burst. Afterglows also linger for hours to days (or even years) longer than their initial explosion, creating more opportunities for discovery. Source link

What’s Made in a Thunderstorm and Faster Than Lightning? Gamma Rays! – NASA Science

What’s Made in a Thunderstorm and Faster Than Lightning? Gamma Rays! – NASA Science

There are an estimated 1,800 thunderstorms occurring on Earth at any given moment. Over its first 10 years in space, Fermi spotted about 5,000 terrestrial gamma-ray flashes. But scientists estimate that there are 1,000 of these flashes every day – we’re just seeing the ones that are within 500 miles of Fermi’s regular orbits, which don’t cover the U.S. … Read more

NASA’s Fermi Mission Nets 300 Gamma-Ray Pulsars … and Counting – NASA Science

NASA’s Fermi Mission Nets 300 Gamma-Ray Pulsars … and Counting – NASA Science

This visualization shows 294 gamma-ray pulsars, first plotted on an image of the entire starry sky as seen from Earth and then transitioning to a view from above our galaxy. The symbols show different types of pulsars. Young pulsars blink in real time except for the Crab, which pulses slower than in real time because … Read more