The Sky at Night - Exoplanets and Antarctica: In a month when the tally of confirmed exoplanets passed 5,000, it's astonishing to remember that just 30 years ago, the notion of planets outside our own solar system was, well – just a notion. Since the first extrasolar planet was discovered in 1992, a staggering array of other worlds have been identified, including many in solar systems quite unlike our own. Last Science posts on HDclump.com: https://hdclump.com/earth-the-power-of-the-planet-episode-5-rare-earth/ https://hdclump.com/earth-the-power-of-the-planet-episode-4-oceans/ https://hdclump.com/earth-the-power-of-the-planet-episode-3-ice/ https://hdclump.com/universe-the-big-bang-before-the-dawn-episode-5/ https://hdclump.com/earth-the-power-of-the-planet-episode-2-atmosphere/ https://hdclump.com/universe-black-holes-episode-4/ https://hdclump.com/universe-the-milky-way-island-of-light-episode-3/ https://hdclump.com/universe-alien-worlds-episode-2/ https://hdclump.com/universe-the-sun-god-star-episode-1/ https://hdclump.com/earth-the-power-of-the-planet-episode-1-volcano/