Scientists in breakthrough that could uncover hidden planets

Researchers say the technology could also improve understanding of how the universe naturally expands

The technology may enable the discovery of hidden planets (Alamy/PA)

Undiscovered planets may soon be revealed, thanks to a technological breakthrough by scientists.

Physicists based at Heriot-Watt University in Edinburgh and Cambridge University have developed a form of astrocomb — a laser system that allows astronomers to observe tiny changes in the colour of starlight, revealing hidden planets in the process.