Name 5 uses for an artificial satellite
Observe and photograph Earth, study weather systems, send radio and tv signal around the world, look deeper into space, discover more about the universe
How many million is in a billion
1,000 million
How many known exoplanets are there?
+4,354
What are 2 techniques of ‘hunting’ planets?
Measuring how stars ‘wobble’ and measuring dips in the light from stars as planets pass in front, known as transit
What do the results of the whole galaxy imply?
Nearly all stars have planets and there are similar amounts of planets as there are stars
What is the temp on a planet often referred to?
The Goldilocks zone