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5) Understanding the Universe: An Introduction to Astronomy, 2nd Edition: Episode 92In the Beginning
Language
English
Description
This lecture turns back the clock to almost the moment of creation—a fraction of a second after the Big Bang—and follows events as they sort themselves out, from what may have been packages of space-time foam winking in and out of existence, to conditions conducive for star and galaxy formation.
11) Understanding the Universe: An Introduction to Astronomy, 2nd Edition: Episode 28Mercury and Venus
Language
English
Description
Though broadly similar to Earth, Mercury and Venus differ in detail. Mercury has a negligible atmosphere and is heavily cratered. Venus has an incredibly thick atmosphere and suffers from an extreme greenhouse effect that makes it intensely hot.
12) Understanding the Universe: An Introduction to Astronomy, 2nd Edition: Episode 31Magnificent Saturn
Language
English
Description
Best known for its extensive ring system, Saturn has come into focus recently thanks to the Cassini spacecraft, which landed a probe on Saturn's largest moon, Titan; and also discovered evidence of liquid water on the moon Enceladus.
17) Understanding the Universe: An Introduction to Astronomy, 2nd Edition: Episode 78Feeding the Monster
Language
English
Description
This lecture explores the disks of gas around supermassive black holes. Material escaping from the vicinity of these objects often follows a highly focused jet along the rotation axis of the disk, sometimes approaching or even appearing to surpass the speed of light.
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