0:00:04 > 0:00:05Welcome to Science Fiction,
0:00:05 > 0:00:08the show where we take the most common myths about science...
0:00:08 > 0:00:11..and send them straight into orbit.
0:00:11 > 0:00:13What's today's question, BUD E?
0:00:13 > 0:00:16Sorry, love. A bit spaced out today, I am.
0:00:16 > 0:00:17HE YAWNS
0:00:17 > 0:00:21Today's question comes from Arnie in Killarney.
0:00:21 > 0:00:23Is the moon made of cheese?
0:00:23 > 0:00:25Oh, there's a bit of a bang off this one already.
0:00:25 > 0:00:29The moon was formed over 4.5 billion years ago,
0:00:29 > 0:00:31when the solar system was only beginning to take shape.
0:00:31 > 0:00:34Tiny particles of food floating around in space
0:00:34 > 0:00:37came together over time to form the planets.
0:00:37 > 0:00:40Chocolate made Mars, cheese made the moon,
0:00:40 > 0:00:41spuds and onion rings made Saturn...
0:00:41 > 0:00:45Professor, I wish you'd stop making up these silly stories!
0:00:45 > 0:00:47Sorry, it just sounded so tasty.
0:00:47 > 0:00:50There are several theories on how the moon actually came to exist.
0:00:50 > 0:00:53Most scientists agree that the moon was created
0:00:53 > 0:00:55when a massive object about the size of Mars
0:00:55 > 0:00:57crashed into the Earth's surface,
0:00:57 > 0:01:00and the resulting cloud of rock and gases
0:01:00 > 0:01:02slowly came together to form the moon.
0:01:02 > 0:01:05But what's up with the cheesy looking surface?
0:01:05 > 0:01:08The huge holes we see on the moon, called craters,
0:01:08 > 0:01:10were created by countless asteroids and comets
0:01:10 > 0:01:13smashing into the moon over millions of years.
0:01:13 > 0:01:15Oh, the poor old craters.
0:01:15 > 0:01:17So there you have it, Arnie.
0:01:17 > 0:01:20The moon in the big tasty, but it definitely isn't made of cheese.
0:01:20 > 0:01:23That's just a load of old science fiction.
0:01:28 > 0:01:30# Fly me to the moon
0:01:30 > 0:01:32# The cheesy moon
0:01:32 > 0:01:34# The squeezy, cheesy, peasy moon... #