Episode 795

Q&A 175: How Do Astronomers Measure Redshift? And More...

00:00:00
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00:41:35

March 21st, 2022

41 mins 35 secs

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About this Episode

In this week's Questions and Answers show, I explain how astronomers use the Doppler Effect to know if objects are moving towards or away from us, I give my thoughts on Starlink as a user, and I suggest ideas on how to become a better writer.

00:00 Start
01:50 How do we know light is red or blue shifted?
04:24 What do I think of Starlink?
08:07 Why don't we visit the atmosphere of Venus?
10:33 What do I like about my job?
12:54 When is something standing still?
14:39 What is the Sun an average star?
16:16 How do we know we're not special?
18:06 What will sanctions on Russia do to space exploration?
22:24 Will the US be patrolling the Moon?
24:09 Any advice for being a writer?
27:14 Why are we sending probes to L2?
28:36 Could we find life around red dwarfs?
30:18 Where are the stars that formed with the Sun?
32:32 How can Parker Solar Probe survive being close to the Sun?
34:13 How would I spend a billion dollars?
36:24 What's my most controversial opinion?
36:48 Would tides be a problem for a habitable moon?
38:04 Can you collect meteorites?

Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week and answer them here.

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