„Faszinierend!“, würde Mr. Spock sagen. 😉
A Giant Lensed Galaxy Arc
The view of a distant galaxy (nearly 10 billion light-years away) has been warped into a nearly 90-degree arc of light by the gravity of the galaxy cluster known as RCS2 032727-132623 (about 5 billion light-years away).
Credit: NASA, ESA, J. Rigby (NASA GSFC), K. Sharon (KICP, U Chicago), and M. Gladders and E. Wuyts (U Chicago)
One of the coolest marvels in the universe is a phenomenon known as „gravitational lensing.“ Unlike many topics in astronomy, the images are not what makes it appealing. Gravitational lensing produces streaks, arcs, and other distorted views that are intriguing, but don’t qualify for cosmic beauty pageants. What makes these images special is the intellectual understanding of how they are created, and the fact that they are even possible at all. The back story takes an ordinary, everyday process, and transforms it into cosmic proportions.
Most of us are familiar with…
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