torsdag 5. juni 2014

Astronomi - En kikk ut mot 10 milliarder lysår på et blunk

Hubble Space Telescope Captures Prolific Star Birth Era

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Now 24, the Hubble Space Telescope is filling in an important gap in the study of star formation and evolution with the Ultraviolet Coverage of the Hubble Ultra Deep Field, an image that sheds new light on stellar growth at distances of five to 10 billion light years.



Hubble composite image features 10,000 middle aged galaxies. NASA/ESA

That's where most of the stars in the expanding 13.8 billion-year-old universe were born.

The UCHUDF is a colorful composite image gathered by Hubble at ultraviolet and near-infrared wavelengths using the satellite observatory's Advanced Camera for Surveys and Wide Field Camera 3. Assembled over 841 orbits of the Earth between 2003 and 2012, the new composite image features 10,000 galaxies, whose ages date back to within a few hundred million years of the Big Bang.

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