"I think we're going to have strong indications of life beyond Earth within a decade, and I think we're going to have definitive evidence within 20 to 30 years," NASA chief scientist Ellen Stofan said.
    
Stofan was speaking at a panel discussion that focused on NASA's efforts to search for habitable worlds and extra-terrestrial life."We know where to look. We know how to look. In most cases we have the technology, and we're on a path to implementing it. And so I think we're definitely on the road," Stofan added.
    
John Grunsfeld, associate administrator for NASA's Science Mission Directorate, also predicted that signs of life will be found relatively soon both in our own solar system and beyond.

"I think we're one generation away in our solar system, whether it's on an icy moon or on Mars, and one generation away on a planet around a nearby star," Grunsfeld said.

 

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