Alien Planets Revealed

00:00:07 NARRATOR: Hundreds of billions of stars in our galaxy.

00:03:12 at Cape Canaveral, Florida.

00:05:47 has surface temperatures in excess of that required

00:08:17 near the constellation of Cygnus the swan.

00:10:28 NARRATOR: That's Kepler's primary mission:

00:13:00 were made in the moments after the Big Bang.

00:15:18 NARRATOR: Earth, as we know, is teeming with life.

00:17:35 we've never found an organism

00:19:32 So scientists were looking for a planet orbiting

00:22:18 MAN (on screen): So Geoff, I just opened up and did an autofocus.

00:24:16 So we'll be able to measure the speed of the star

00:26:21 and this ocean is unlike anything on Earth.

00:28:50 life could have been around for some time.

00:31:26 which is a complete lie.

00:34:00 When we first conceived of the notion

00:35:53 with a stable atmosphere

00:38:13 as much visible light as they can.

00:40:07 like the whales in our oceans

00:42:24 NARRATOR: What Natalie's team member had spotted at the last moment

00:44:27 for the aquatic or marine life to be actually pretty similar

00:47:04 hundreds of random movement patterns and tests them out.

00:49:21 How could it be that after 400 million years

00:51:34 rock and water-- suitable for life as we know it.

262:06:00 star once every 38 days.