Messier 80 - the NGC 6093 Globular Cluster By Tammy Plotner - March 11, 2019 03:00 PM UTC | Extragalactic Space Bites+ ▶ Our latest video — free on Patreon Bad News for Europa Exploration // Watching Pluto’s Atmosphere Fade Away // Auroras on Mars The extended edition: ad-free, with extra content. Free to watch — no account needed. ▶ Watch it free Previous Article ← Astronomy Cast Ep. 521: The Deep Space Network Next Article Massive Photons Could Explain Dark Matter, But Don't →