Find out why Universe Today has no ads

Astronomy Cast Ep. 187: History of Astronomy Part 5; The 20th Century

Many of the modern ideas in astronomy happened in just the 20th century: dark matter, the Big Bang, inflation, quasars, black holes. So many discoveries in one important century.

Click here to download the episode.

Or subscribe to: astronomycast.com/podcast.xml with your podcatching software.

History of Astronomy Part 5 shownotes and transcript.

Q&A+ Our latest video — free on Patreon Will A Naked-Eye Moon Object End Conspiracy Theories? The extended edition: ad-free, with extra content. Free to watch — no account needed. ▶  Watch it free