Yesterday NASA revealed the discovery of seven Earth-like planets circling a dwarf star about 40 light years from earth.. Three of them are considered LIKELY to have water, and in what scientists call the habitable zone.

Which means they could support life. Here's the full NASA press conference where they made the announcement.

The discovery comes courtesy of the  Spitzer Space Telescope, which is managed by scientists at Caltech.

We spoke about the  discovery and the new system with Gary Blackwood, NASA's Exoplanet Exploration Program manager.