British scientists say they have produced the “blackest ever” surface developed so far.
The industrial coating for telescopes is one of the darkest and least reflective surfaces on Earth.

By minimising the scatter of stray light, it could improve the vision of telescopes, from amateur instruments to the mighty Hubble.

It reflects 10 to 20 times less light than current coatings and has a number of applications in astronomy, such as on star trackers, which help spacecraft navigate.