Post #46

Massive cosmic objects, like a huge cluster of galaxies, have so much gravity they can actually warp light coming from behind them! Once NASA Webb begins science operations in about six months, it might detect the universe’s first black holes and stars with the help of gravitational lensing. This Hubble image shows the effect in action. The galaxy cluster Abell 2744 warped and magnified the images of nearly 3,000 distant background galaxies! Image credits: NASA, ESA, Jennifer Lotz (STScI), Matt Mountain (STScI), Anton M. Koekemoer (STScI), HFF Team (STScI)