Question

PLEASE HELP :)

A scientist, using a telescope, sees arcs of light around a galaxy. In 3–5 sentences, explain the cause of the arcs of light

Answer 1

The arcs of light are a result of gravitational Lensing. This happens when a large amount of mass (like a cluster of galaxies) creates a gravitational field. The field is so strong that it distorts and magnifies light from galaxies in the distance.