<p></p> <p>Fast-moving magnetic waves emanating from a distant supermassive black hole undulate like a whip whose handle is being shaken by a giant hand, according to a new study using data
<table border=0 bordercolor=#000080 cellspacing=5 cellpadding=0> <tr> <td valign=center> </td> <td valign=center> <p><b>May 30</b>: Tiny crystals of a green mineral called olivine are falling down like rain on a burgeoning star, according to observations from <a
<p> </p> <p style="text-align:center" class="small"> Centaurus A is a giant elliptical active galaxy 12 million light-years away. At its heart lies a black hole with a mass of 55 million suns. Now, the