The Mad and Terrible Arkansan

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Oct 1

From Astronomy Picture Of The Day; October 1, 2013:
Filaments of the Vela Supernova Remnant Angus Lau, Y Van, SS Tong (Jade Scope Observatory)
The explosion is over but the consequences continue. About eleven thousand years ago a star in the constellation of Vela could be seen to explode, creating a strange point of light briefly visible to humans living near the beginning of recorded history. The outer layers of the star crashed into the interstellar medium, driving a shock wave that is still visible today. A roughly spherical, expanding shock wave is visible in X-rays. The above image captures some of that filamentary and gigantic shock in visible light. As gas flies away from the detonated star, it decays and reacts with the interstellar medium, producing light in many different colors and energy bands. Remaining at the center of the Vela Supernova Remnant is a pulsar, a star as dense as nuclear matter that rotates completely around more than ten times in a single second.

Since Astronomy Picture of the Day’s main site was being hosted by NASA, it is currently unavailable until the federal government shutdown is over. However, since APOD is not run by NASA personnel it is still available at the following mirror sites until Congress gets its act together:
APOD Mirrors and Social Sites

From Astronomy Picture Of The Day; October 1, 2013:

Filaments of the Vela Supernova Remnant 
Angus Lau, Y Van, SS Tong (Jade Scope Observatory)

The explosion is over but the consequences continue. About eleven thousand years ago a star in the constellation of Vela could be seen to explode, creating a strange point of light briefly visible to humans living near the beginning of recorded history. The outer layers of the star crashed into the interstellar medium, driving a shock wave that is still visible today. A roughly spherical, expanding shock wave is visible in X-rays. The above image captures some of that filamentary and gigantic shock in visible light. As gas flies away from the detonated star, it decays and reacts with the interstellar medium, producing light in many different colors and energy bands. Remaining at the center of the Vela Supernova Remnant is a pulsar, a star as dense as nuclear matter that rotates completely around more than ten times in a single second.

Since Astronomy Picture of the Day’s main site was being hosted by NASA, it is currently unavailable until the federal government shutdown is over. However, since APOD is not run by NASA personnel it is still available at the following mirror sites until Congress gets its act together:

APOD Mirrors and Social Sites

(Source: apod.nasa.gov)