National Geographic

Smallest Known Black Hole Discovered

<table cellspacing="0" cellpadding="1"> <tr> <td valign="top"> <a href="http://news.nationalgeographic.com/news/2008/04/080402-black-hole.html"> <img src="http://news.nationalgeographic.com/news/images/thumbs/080402-black-hole_60x40.jpg" height="40" width="60" alt="image" /> </a> </td> <td valign="top"> <p>The newfound black hole is only 3.8 times as massive as the sun and just 15 miles (25 kilometers) in diameter.</p> </td> </tr></table>