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| Copyright ESA and the Planck Collaboration |
artist’s impression of photons in the Cosmic Microwave
Background (CMB)
deflected by the gravitational lensing effect of
massive cosmic structures
as they travel across the Universe.
Gravitational lensing creates tiny, additional distortions to the
mottled pattern of the CMB temperature fluctuations. Planck cosmologists
have extracted a map of this gravitational lensing effect covering the
whole sky for the first time, providing a new way to probe the evolution
of structure in the Universe over time.
ESA :: SPACE IN IMAGES