His work, from the sun to a gravitational lens, has appeared in major news magazines.
It was not until 1979 that the first gravitational lens would be discovered.
Most of the gravitational lenses in the past have been discovered accidentally.
He is most noted for being one of the first to study the gravitational lens effect.
The earliest example was discovered in 1979; since then, more than a hundred gravitational lenses have been observed.
A gravitational lens could take existing gravity waves and focus them.
A few examples of gravitational lenses have been observed in recent years.
The first one from 1975 to 1991 is dedicated to the study of gravitational lenses.
This sample demonstrates the rich diversity of strong gravitational lenses.
If this sample is representative, there would be nearly half a million similar gravitational lenses over the whole sky.