NASA Insignia
Imagine the Universe!


One astronomical phenomenon that is used to validate relativity is gravitational lensing. The 'lensing' is caused by the bending of light's path in the presence of strong gravity: an anomaly predicted by General Relativity. While gravitational lensing supports relativity, it is also a useful analytical tool for astronomers. For instance, scientists in Scotland watched as a relatively nearby star passed in front of a far away star. By observing how the light from the far away star was bent, the scientists discovered that the nearby star also had a Jupiter-sized planet orbiting it!