Home » News & Blogs » An “Island Universe” in the Coma Cluster
Bookmark and Share
Slacker Astronomy

An “Island Universe” in the Coma Cluster

23 Oct 2012, 18:29 UTC
An “Island Universe” in the Coma Cluster
(200 words excerpt, click title or image to see full post)

Nice time-lapse. –Ben The X-Ray Sun Over 5.5 Years Behold five and a half years worth of full-sun observations from XRT. A dramatic illustration of the solar cycle, this movie begins about one year before the first reversed-polarity sunspot ushered in the current cycle on January 8, 2008. The solar cycle is a periodic variation [...]

Nice time-lapse.
–Ben
The X-Ray Sun Over 5.5 Years
Behold five and a half years worth of full-sun observations from XRT. A dramatic illustration of the solar cycle, this movie begins about one year before the first reversed-polarity sunspot ushered in the current cycle on January 8, 2008. The solar cycle is a periodic variation in the Sun’s activity that is caused by the gradual ‘tangling’ and eventual reversal of its magnetic field.
http://www.nasa.gov/multimedia/videogallery/index.html?media_id=152622071

Latest Vodcast

Latest Podcast

Advertise PTTU

NASA Picture of the Day

Astronomy Picture of the Day

astronomy_pod