Daniel and Kelly’s Extraordinary Universe cover image

Listener Questions: photon information, simulated Universes and Daniel's fantasy science budget

Daniel and Kelly’s Extraordinary Universe

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X Rays Let You See the Universe in Different Ways

Different frequencies of light let you see the universe in different ways. For example, a cloud of hydrogen will tend to absorb photons at only those frequencies that match its energy levels. But if you turn on a telescope like the james webb space telescope that can look in the infra red, then you can see these things which are otherwise invisible to the naked eye,. Like planets. Don't glow in the visible so if you use hobble, you can't see them. We also can get information using gravitational waves. These are weird ripples in space and time created when black holes orbit each other and fall in and merge. And that's a very different kind of radiation it's not

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