Sir Fred Hoyle felhöi megérkeztek!

Sir Fred Hoyle 1957-ben irt a fekete felhökről.

Hát most itt vannak és a szakemberek nem tudják a magyarázatát.

max julius 18-án végigsöpört egy hatalamas vihar Europán.

Németországban földcsuszamlás volt,és Japánban a sárlavina elmosott
egy települést .

Noctilucent clouds are brightening again over Europe.

"On July 20th we had a fantastic display--possibly the best of the year so far," reports John Houghton of Leicester UK.

The display was vivid electric-blue and included some unusual forms.

"They reminded me of a great whale swimming across the sky," remarks eyewitness Peter Vasey of Hexham UK.

When a similar display materialized over Europe last week, the clouds quicky spread across the Atlantic, appearing in the USA as far south as Utah, Colorado, northern California and Nevada.

Could it happen again tonight? Browse the photo gallery for observing tips:

UPDATED: 2009 Noctilucent Photo Gallery

http://www.spaceweather.com/nlcs/gallery2009_page16.htm?PHPSESSID=g1jr08...

[previous years: 2008, 2007, 2006, 2005, 2004, 2003]
http://spaceweather.com/submissions/large_image_popup.php?image_name=Pet...