Access

News and Views

Nature 445, 37 (4 January 2007) | doi:10.1038/445037a; Published online 3 January 2007

Open Innovation Challenges

Cosmology: Ripples of early starlight

Craig J. Hogan1

Top

After all known sources are accounted for, puffy blobs of infrared light persist on deep-field telescope images. Evidence is mounting that these could be the signatures of stars in early 'protogalaxies'.

About a year ago, Kashlinsky et al. found evidence for fluctuations in background infrared light from far-off cosmological sources larger than would be expected from unresolved galaxies in known populations1, 2. In two papers to be published in The Astrophysical Journal, the same authors now confirm the effect in different and larger sections of the sky3, 4.

  1. Craig J. Hogan is in the Departments of Astronomy and of Physics, University of Washington, Box 351580, Seattle, Washington 98195-1580, USA.
    Email: hogan@u.washington.edu

MORE ARTICLES LIKE THIS

These links to content published by NPG are automatically generated.

NEWS AND VIEWS

Cosmology The infrared dawn of starlight

Nature News and Views (03 Nov 2005)

Astronomy Trouble at first light

Nature News and Views (20 Apr 2006)

See all 3 matches for News And Views