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 ...

Two X-ray space telescopes capture the comet's high-energy glow, revealing hidden gases and solar wind interactions. When you purchase through links on our site, we may earn an affiliate commission.