How do scientists take pictures of our universe?
Scientists cannot take pictures of our whole universe, but we can take pictures of what we can see to extreme distance using radio telescopy. I Highly recommend that you watch this video: https://www.ted.com/talks/natasha_hurley_walker_how_radio_telescopes_show_us_unseen_galaxies
Astronomers and scientists alike are able to pick up radio waves in space (that is emitted by stars, galaxies, etc.) and transform it into a coloured image by giving different wavelengths specific colours.
This image is a photo of the square kilometer array from South Africa.
And heres what we can see from these telescopes.
And the photo below is an image of small but very sensitive radio telescopes. They combine all of their power to create a large and detailed image.
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