Website review: Astronomy Picture of the Day

JerK discovered this in Astronomy •94 reviews since Dec 16, 2002
astronomy, photography, space •antwrp.gsfc.nasa.gov/apod/

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yassertariq rated 2 weeks ago

Astronomy Picture Of The Day

ketogah rated 3 weeks ago

from the page: " Eta Carinae and the Homunculus Nebula Credit: N. Smith, J. A. Morse (U. Colorado) et al., NASA Explanation: How did the star Eta Carinae create this unusual nebula? No one knows for sure. About 165 years ago, the southern star Eta Carinae mysteriously became the second brightest star in the night sky. In 20 years, after ejecting more mass than our Sun, Eta Car unexpected faded. This outburst appears to have created the Homunculus Nebula, pictured above in a composite image from the Hubble Space Telescope taken last decade. Visible in the above image center is purple-tinted light reflected from the violent star Eta Carinae itself. Surrounding this star are expanding lobes of gas laced with filaments of dark dust. Jets bisect the lobes emanating from the central star. Surrounding these lobes are red-tinted debris captured only by its glow in a narrow band of red light. This debris is expanding most quickly of all, and includes streaming whiskers and bow shocks caused by collisions with previously existing material. Eta Car still undergoes unexpected outbursts, and its high mass and volatility make it a candidate to explode in a spectacular supernova sometime in the next few million years. "

alfiozzz rated 3 weeks ago

Nasa's Astronomy Picture of the Day.

Jday13 rated 2 months ago

The picture they posted today is totally sweet looking!

josephdunphy rated 3 months ago

NASA's scrapbook. Images from space probes, views through telescopes, etc., accompanied by brief descriptions of what one is looking at. Far more diversity is present than the selection seen on my blog might suggest; I just have a fondness for nebulae.