Photo: Magnetic-Shield Cracks Found; Big Solar Storms Expected



Solar winds (depicted in red) are infiltrating Earth's protective magnetosphere (blue), experts said in December 2008, which could lead to a perilous period of solar storms starting in 2012.

Solar storms—when explosions from the sun send blasts of charged particles toward Earth—can cause satellites to malfunction, threaten spacewalkers, and wipe out power grids.

Image by Steele Hill/NASA


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.