On Exoplanet Atlas, dense gravity creates a thick atmosphere allowing airborne life forms to thrive - but also providing a lesson in adaptability.
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On Exoplanet Atlas, dense gravity creates a thick atmosphere allowing airborne life forms to thrive - but also providing a lesson in adaptability.
S1E1 • Alien Worlds • 2020 • Astronomy
History in the making; the inside story of the Artemis II mission around the moon and back. Four astronauts - Reid Wiseman, Victor Glover, Christina Koch and Jeremy Hansen - have just completed a ten-day mission going deeper into space than anyone has gone before. They are the first humans to circumnavigate the moon since 1972.
2026 • Astronomy
Today Phil explains that YES, there are other planets out there and astonomers have a lot of methods for detecting them. Nearly 2000 have been found so far. The most successful method is using transits, where a planet physically passes in front of its parent star, producing a measurable dip in the star’s light. Another is to measuring the Doppler shift in a star’s light due to reflexive motion as the planet orbits. Exoplanets appear to orbit nearly every kind of star, and we’ve even found planets that are the same size as Earth. We think there may be many billions of Earth-like planets in our galaxy.
27 • Crash Course Astronomy • 2015 • Astronomy
Professor Brian Cox explores the solar system’s hidden realms, between and beyond the planets, where countless worlds lie hiding in the darkness.
S1E2 • Solar System • 2024 • Astronomy
"It is beyond our powers to predict the future"
4/10 • The Sagan Series • 1989 • Astronomy
While Jupiter is nowhere near massive enough to initiate fusion in its core, there are even more massive objects out there that fall just short of that achievement as well called brown dwarfs. Brown dwarfs, have a mass that places them between giant planets and small stars. They were only recently discovered in the 1990’s, but thousands are now known. More massive ones can fuse deuterium, and even lithium, but not hydrogen, distinguishing them from “normal” stars. Sort of.
28 • Crash Course Astronomy • 2015 • Astronomy