Photo: Smallest Known Black Hole Discovered



An artist's illustration shows the lightest known black hole—about 3.8 times the mass of our sun. Located in the binary system XTE J1650-500, the black hole was found by looking for x-ray emissions generated by in-falling matter from its companion star.

Image courtesy NASA/CXC/A. Hobar


NEWS FEEDS    After installing a news reader, click on this icon to download National Geographic News's XML/RSS feed. After installing a news reader, click on this icon to download National Geographic News's XML/RSS feed.

Get our news delivered directly to your desktop—free.
How to Use XML or RSS

ADVERTISEMENT

NATIONAL GEOGRAPHIC'S PHOTO OF THE DAY

50 Drives of a Lifetime

Listen to your favorite National Geographic news daily, anytime, anywhere from your mobile phone. No wires or syncing. Download Stitcher free today.