17:41 Earth and Space Science The history of our world in 18 minutes - David Christian Lesson duration 17:41 Manage Library 301,312 Views
06:58 Earth and Space Science A 3D atlas of the universe - Carter Emmart Lesson duration 06:58 Manage Library 1,868,137 Views
17:44 Earth and Space Science The sound the universe makes - Janna Levin Lesson duration 17:44 Manage Library 26,526 Views
04:39 Earth and Space Science The death of the universe Lesson duration 04:39 Manage Library 1,316,383 Views
08:03 Earth and Space Science My glacier cave discoveries Lesson duration 08:03 Manage Library 127,214 Views
03:27 Earth and Space Science Could a Saturn moon harbor life? - Carolyn Porco Lesson duration 03:27 Manage Library 23,843 Views
04:33 History The most groundbreaking scientist you've never heard of Lesson duration 04:33 Manage Library 3,008,045 Views
03:45 Earth and Space Science Four ways to understand the Earth's age Lesson duration 03:45 Manage Library 659,009 Views
04:46 Earth and Space Science Gravity and the human body Lesson duration 04:46 Manage Library 441,237 Views
04:25 Earth and Space Science The Arctic vs. the Antarctic Lesson duration 04:25 Manage Library 4,548,234 Views
09:01 Earth and Space Science From outer space to under our skin: a look at the universe Lesson duration 09:01 Manage Library 8,428,376 Views
03:46 Earth and Space Science A rare, spectacular total eclipse of the sun Lesson duration 03:46 Manage Library 1,086,578 Views
02:59 Physical Science Free falling in outer space Lesson duration 02:59 Manage Library 212,271 Views
04:14 Earth and Space Science Is there a center of the universe? Lesson duration 04:14 Manage Library 633,151 Views
05:25 Earth and Space Science How big is the ocean? Lesson duration 05:25 Manage Library 2,875,081 Views
03:57 Earth and Space Science What on Earth is spin? Lesson duration 03:57 Manage Library 162,947 Views
03:31 Earth and Space Science Is space trying to kill us? Lesson duration 03:31 Manage Library 345,585 Views
05:35 Earth and Space Science Dark matter: The matter we can't see Lesson duration 05:35 Manage Library 3,058,275 Views
06:30 Earth and Space Science The basics of the Higgs boson Lesson duration 06:30 Manage Library 2,217,307 Views
06:21 Earth and Space Science The search for other Earth-like planets Lesson duration 06:21 Manage Library 42,316 Views
07:53 Earth and Space Science String theory and the hidden structures of the universe Lesson duration 07:53 Manage Library 128,005 Views
03:36 Technology How does an atom-smashing particle accelerator work? Lesson duration 03:36 Manage Library 615,391 Views