1
00:00:00,090 --> 00:00:03,170
[Music]

2
00:00:03,170 --> 00:00:08,210
[Music] How do we find worlds orbiting other stars?

3
00:00:08,210 --> 00:00:13,340
[Music] Transits are now the most successful method.

4
00:00:13,340 --> 00:00:21,430
[Music] As a planet passes in front of its star, it blocks some of the light, causing a slight drop in brightness.

5
00:00:21,430 --> 00:00:25,480
[Music] If these dips repeat, it could indicate a planet.

6
00:00:25,480 --> 00:00:29,600
[Music]

7
00:00:29,600 --> 00:00:33,740
[Music] The size and shape of the dips tell us planet size and orbit, 

8
00:00:33,740 --> 00:00:37,910
[Music]

9
00:00:37,910 --> 00:00:41,990
[Music] or even if there are several worlds.

10
00:00:41,990 --> 00:00:46,090
[Music]

11
00:00:46,090 --> 00:00:50,230
[Music] Transits have led us to thousands of new planets already.

12
00:00:50,230 --> 00:00:52,230
[Music]

13
00:00:52,230 --> 00:01:01,428
[Music] Upcoming missions like TESS will find thousands more.