Regina Barber
👤 SpeakerAppearances Over Time
Podcast Appearances
Okay, Josh, so to start, can you tell me, how have we found exoplanets in the past? Like, what methods do we know work?
It makes me think of like a lighthouse, right? Like if you're not at the right angle, if you were a helicopter above the lighthouse, you would not see like the beam of light hitting you. You could miss it.
It makes me think of like a lighthouse, right? Like if you're not at the right angle, if you were a helicopter above the lighthouse, you would not see like the beam of light hitting you. You could miss it.
It makes me think of like a lighthouse, right? Like if you're not at the right angle, if you were a helicopter above the lighthouse, you would not see like the beam of light hitting you. You could miss it.
Right. I mean, one analogy I like to use is sound instead of light. They're both waves, so we can do that. The siren of a fire engine, it's going to sound different when it's coming at you versus when it passes you. Right. And that's the Doppler effect.
Right. I mean, one analogy I like to use is sound instead of light. They're both waves, so we can do that. The siren of a fire engine, it's going to sound different when it's coming at you versus when it passes you. Right. And that's the Doppler effect.
Right. I mean, one analogy I like to use is sound instead of light. They're both waves, so we can do that. The siren of a fire engine, it's going to sound different when it's coming at you versus when it passes you. Right. And that's the Doppler effect.
It's too fast. It's too fast.
It's too fast. It's too fast.
It's too fast. It's too fast.
So you use this new method to measure how, like, stars wiggle, and it's called astrometry. Like, what is astrometry?