Thursday, August 28, 2008

2 nice pictures of the day.

A Bit of the Old Ultraviolet
Link: http://www.space.com/imageoftheday/image_of_day_080513.html

The ultraviolet light of the sun appears to burn electric blue when seen by SOHO.

This image shows a group of active regions that appear brighter in extreme UV light near the sun's left edge. The loops on the sun's fringe reflect particles spinning along and tracing magnetic field lines rising up and above several active regions. Scientists can observe the slowly changing activity along these magnetic field lines thanks to SOHO taking images every two and a half minutes.

The Solar & Heliospheric Observatory (SOHO) launched as a joint mission between ESA and NASA in 1995. The spacecraft has the capability to image and examine the sun from its core to the outer coronal wreath and the solar wind.

— SOHO and SPACE.com Staff

Credit: SOHO (ESA & NASA)

Sis Aisya note: **This article taken from Space.com :) Love it!
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Active Galaxy NGC 1275
Link: http://antwrp.gsfc.nasa.gov/apod/ap080822.html

Credit: NASA, ESA, Hubble Heritage (STScI/AURA);
A. Fabian (IoA, Cambridge U.), L. Frattare (STScI), CXC, G. Taylor, NRAO,VLA
Explanation: Active galaxy NGC 1275 is the central, dominant member of the large and relatively nearby Perseus Cluster of Galaxies. A prodigious source of x-rays and radio emission, NGC 1275 accretes matter as entire galaxies fall into it, ultimately feeding a supermassive black hole at the galaxy's core. This stunning visible light image from the Hubble Space Telescope shows galactic debris and filaments of glowing gas, some up to 20,000 light-years long. The filaments persist in NGC 1275, even though the turmoil of galactic collisions should destroy them. What keeps the filaments together? Recent work indicates that the structures, pushed out from the galaxy's center by the black hole's activity, are held together by magnetic fields. To add x-ray data from the Chandra Observatory and radio data from the Very Large Array to the Hubble image, just slide your cursor over the picture. In the resulting composite, x-rays highlight the shells of hot gas surrounding the center of the galaxy, with radio emission filling giant bubble-shaped cavities. Also known as Perseus A, NGC 1275 spans over 100,000 light years and lies about 230 million light years away.

Sis Aisya note: **Article taken from NASA :) Nice Pix eh!

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