Image: The reflection of light or "glint" could reveal the existence of Earth-like planets.From The BBC:
The next generation of telescopes could reveal the presence of oceans on planets outside our Solar System.
Detecting water on Earth-like planets offers the tantalising prospect they could sustain life.
Scientists hope the reflection of light, or "glint", from mirror-like ocean surfaces could be picked up by a US space telescope set for launch in 2014.
The research by US astronomers has been published in Astrophysical Journal Letters.
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