Dr Becky Smethurst: How do you actually find a black hole?

By day Dr Becky, is an astrophysicist, unravelling the mysteries of supermassive black holes, but by night entertains science buffs like us on her YouTube channel.

In this week's episode of the Science Focus Podcast she explains how to find a black hole (and why they’re actually incredibly bright), what an astrophysicist does all day, and why flooding YouTube with scientists is the best way to counteract disinformation and bogus theories.

Her book Space: 10 Things You Should Know (£9.99, Orion), is out now and you can read an extract from it here.

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Listen to more episodes of the Science Focus Podcast:

• Kathryn D. Sullivan: What is it really like to walk in space?
• Monica Grady: What is the future of space science?
• Mark McCaughrean: How do you launch a successful space mission?
• Kevin Fong: Why is the Moon landing still relevant 50 years on?
• Bruce Banerdt: What NASA's InSight will tell us about Mars
• Natalie Starkey" What asteroids can tell us about our Solar System

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