Trajectory of Cosmic Microwave Background (CMB) (IMAGE)

DOE/Lawrence Berkeley National Laboratory

Trajectory of Cosmic Microwave Background (CMB)

Caption

In this illustration, the trajectory of cosmic microwave background (CMB) light is bent by structures known as filaments that are invisible to our eyes, creating an effect known as weak lensing captured by the Planck satellite (left), a space observatory. Researchers used computers to study this weak lensing of the CMB and produce a map of filaments, which typically span hundreds of light years in length.

Credit

Siyu He, Shadab Alam, Wei Chen, and Planck/ESA

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