New Technology Helps Ground Telescopes Outdo Hubble

A new technology called nulling interferometry will give some of the world's biggest telescopes the power to detect Earth-like planets outside our solar system—something even the Hubble has not accomplished. Basically, nulling interferometry chains together the light captured by several large telescopes to create a single "super telescope" that has enough power to detect a quarter lying on the surface of the moon. Currently, an array of telescopes in Chile's Atacama Desert known as the Very Large Telescope Interferometer (VLTI) is being outfitted with a nulling device called PRIMA. More »