WEBVTT FILE

1
00:00:00.000 --> 00:00:03.670
Scientists using NASA's Hubble
Space Telescope

2
00:00:03.670 --> 00:00:07.274
just found intriguing evidence
of the first possible exomoon.

3
00:00:07.274 --> 00:00:14.147
Exomoons are moons orbiting
planets outside our solar
system.

4
00:00:14.147 --> 00:00:16.283
The Kepler spacecraft showed the
first hints

5
00:00:16.283 --> 00:00:20.988
of a moon orbiting exoplanet
Kepler-1625b.

6
00:00:20.988 --> 00:00:25.092
Now Hubble has also observed a
transit of the planet

7
00:00:25.092 --> 00:00:27.961
with a signature that appears to
be a moon.

8
00:00:27.961 --> 00:00:35.035
[music]

9
00:00:35.035 --> 00:00:38.372
If truly a moon, it would be the
size of Neptune

10
00:00:38.372 --> 00:00:41.875
and its planet is bigger than
Jupiter.

11
00:00:41.875 --> 00:00:49.049
More Hubble observations will
confirm what this truly is.

12
00:00:49.049 --> 00:00:52.619
Learn more at...

13
00:00:52.619 --> 00:00:00.000
www.nasa.gov/hubble
@NASAHubble