Observations by NASA’s NuSTAR X-ray telescope give astronomers new clues about the brightest and most energetic gamma-ray burst ever detected. Scientists detected the brightest gamma-ray…
NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) has collected data showing that Ultra-luminous X-ray sources (ULXs) can exceed the Eddington limit, traditionally viewed as the maximum…
These objects are more than 100 times brighter than they should be. Observations by NASA’s NuSTAR X-ray telescope support a possible solution to this puzzle….
Some of the hottest spots in the Sun’s atmosphere appear in the NuSTAR telescope’s X-ray view. Even on a sunny day, human eyes can’t see…
This small but powerful space telescope has spent a decade of observing some of the hottest, densest, and most energetic regions in our universe —…
A design quirk in the X-ray observatory has made it possible for astronomers to use previously unwanted light to study even more cosmic objects than…
The planet’s auroras are known to produce low-energy X-ray light. A new study finally reveals higher-frequency X-rays and explains why they eluded another mission 30…
Known as ultraluminous X-ray sources, the emitters are easy to spot when viewed straight on, but they might be hidden from view if they point…
What remains of the star that exploded just outside our galaxy in 1987? Debris has obscured scientists’ view, but two of NASA’s X-ray telescopes have…
Astronomers tend to have a slightly different sense of time than the rest of us. They regularly study events that happened millions or billions of…
Satellite images from the BRITE mission with the participation of researchers from TU Graz and the Universities of Innsbruck and Vienna document for the first…
Unprecedented observations of a nova outburst in 2018 by a trio of satellites, including two NASA missions, have captured the first direct evidence that most…
A brief and unusual flash spotted in the night sky on June 16, 2018, puzzled astronomers and astrophysicists across the globe. The event — called…
An international collaboration operating NASA’s NuSTAR satellite has revealed that two of the biggest stars in the galaxy are capable of creating cosmic rays. Their…
A new study using data from NASA’s NuSTAR space telescope suggests that Eta Carinae, the most luminous and massive stellar system within 10,000 light-years, is…
In the 1980s, researchers began discovering extremely bright sources of X-rays in the outer portions of galaxies, away from the supermassive black holes that dominate…
Using NASA’s NuSTAR Space Telescope and the William Herschel Observatory, astronomers have been able to measure the distance that particles in jets travel before they…
New Chandra data has revealed 25 bright point-like X-ray sources in Arp 299, 14 of which are categorized as “ULXs”. These ULXs are likely binary…
