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Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

See Explanation. Clicking on the picture will download the highest resolution version available.

Dust Pillar of the Carina Nebula

Explanation: Inside the head of this interstellar monster is a star that is slowly destroying it. The monster, on the right, is actually an inanimate pillar of gas and dust that measures over a light year in length. The star, not itself visible through the opaque dust , is bursting out partly by ejecting energetic beams of particles . Similar epic battles are being waged all over the star-forming Carina Nebula . The stars will win in the end, destroying their pillars of creation over the next 100,000 years, and resulting in a new open cluster of stars. The pink dots around the image are newly formed stars that have already been freed from their birth monster . The above image was released last week in commemoration of the Hubble Space Telescope s 20th year of operation. The technical name for the stellar jets are Herbig-Haro objects . How a star creates Herbig-Haro jet s is an ongoing topic of research , but it likely involves an accretion disk swirling around a central star. A second impressive Herbig-Haro jet occurs diagonally near the image center.

Date April 26, 2010
Credit Credit: NASA , ESA , and M. Livio and the Hubble 20th Anniversary Team ( STScI )
Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
A service of: ASD at NASA / GSFC,
NASA Science Activation & Michigan Tech. U.