Matter will be created from light within a year, claim scientists

Researchers have worked out how to make matter from pure light and are drawing up plans to demonstrate the feat within the next 12 months.

The theory underpinning the idea was first described 80 years ago by two physicists who later worked on the first atomic bomb. At the time they considered the conversion of light into matter impossible in a laboratory.

But physicists at Imperial College London claim to have cracked the problem using high-powered lasers and other equipment now available to scientists. Full story »

Photograph: Lawrence Manning/Corbis

These high-quality images may look like photographs of world cities at night taken by astronauts from the International Space Station – but they are painstakingly constructed from public map data and finessed by artist Marc Khachfe. See more

Some stunning shots from the environmental photographer of the year awards including this image by Florian Breuer of quiver trees by night in Namibia. Check out +environmentguardian for more.

And the US takes gold again! A light shines behind President Barack Obama as he speaks during a campaign event in Iowa Photograph: Carolyn Kaster/AP

Source: YouTube/SOHfestival

An installation light projection on Australian landmark the Sydney Opera House makes it look as if its roof crumbles to the ground. The display forms part of the Vivid light and music festival in the New South Wales capital, and is created by the German design company Urbanscreen

Earth Hour plunges global landmarks into darkness

Iconic buildings across the world including the Eiffel Tower in Paris and the Opera House in Sydney turn off their lights as part of Earth Hour. Held on the last Saturday of March each year, the event highlights environmental concerns by inviting people to switch off non-essential lighting