Plot points with coordinates where \(x\) and \(y\) are equal. Three points are sufficient, but more can be plotted. Draw a line through the plotted points. If \(x\) is positive, \(y\) is negative. If ...

Using ESA's INTEGRAL spacecraft, astronomers have detected exceptionally bright X-ray flares from the Cygnus X-1 X-ray binary ...

A joint NASA/Italian space mission has put its sunglasses on to observe polarized X-ray light from a corona of hot gas around the Cygnus X-1 black hole. When you purchase through links on our site, we ...