The first X-ray portrait of comet 3I/ATLAS has turned a rare interstellar visitor into a powerful new probe of the space between the stars. By catching the comet in high-energy light, ESA’s XMM-Newton ...

Using a high-energy X-ray system, they turned the satellite effectively transparent, revealing fuel and gas tanks, hidden ...

Recently, astronomers announced the results of a study using data collected with NASA’s Chandra X-ray Observatory of two comets — C/2012 S1 (also known as “Comet ISON”) and C/2011 S4 (“Comet PanSTARRS ...

gained new insights into one such starburst galaxy, NGC 253. In cosmic terms NGC 253 is very near, “only” some 8 million light years away. Its observation is also facilitated because the total amount ...