Have you ever wondered how astronomers manage to map out the Milky Way when it’s so incredibly vast? One of the most powerful tools is something called 21 cm radiation. Have you ever wondered how astronomers manage to map out the Milky Way when it’s so incredibly vast? One of the most powerful tools is something called 21 cm radiation. Astronomy Phys.org – latest science and technology news stories
How astronomers make deep maps of the Milky Way
