Big collisions `make galaxies denser`

Using gravitational “lenses” in space, astronomers have discovered that the centres of the biggest galaxies are growing denser, which is an evidence of repeated collisions and mergers by massive galaxies with 100 billion stars.

Sunglasses that can change colour rapidly

The process for creating the lenses, for which a patent is pending, also is less expensive and less wasteful to manufacturers than previous methods.

Looking through telescopes, lenses with more clarity

Aerogels are among the most versatile materials available for technical applications.

World`s first electronic specs to make tedious bifocals history

If you`re one of the many who rely on bifocal lenses, you may soon get a new view of life this summer.

Soon, contact lenses to help diabetics

Your contact lenses would one day help you manage diabetes, say researchers.

Soon, contact lenses to help diabetics

Your contact lenses would one day help you manage diabetes, say researchers.

New generation of lenses to improve radar, telecom

Scientists have invented a new generation of lenses which can radically improve the capabilities of telecom or radar systems, providing greater perspective and detail.