Discovery

Over 30 Ultracool dwarf binary systems discovered!
00:01:18
15 Most Amazing Treehouses Ever Built
00:16:17
Pirate Birds’ of the Tropics 180 | National Geographic
00:02:17
ROV視角：奇特的深海透明「小頭魷」《國家地理》雜誌
00:01:17
15 Most Powerful Ancient Siege Weapons
00:19:38
China launches pair of navigation satellites from sea platform
00:01:21
Making a quick Spring Lathe
00:13:15
Neil deGrasse Tyson on Climate Change
00:02:48
Is The CIA Responsible For UFO Sightings, Or Is It All A Cover Up?| Rob Riggle: Global Investigator
00:09:49
Turning a Double Spoon Blank
00:26:38
Does the Solar System Line Up with the Milky Way?
00:04:15
13-Minute Lake Meditation Smithsonian Channel
00:13:43
Fall of Tenochtitlan (1521) - Spanish-Aztec War DOCUMENTARY
00:15:01
Ritchie Torres: America Owes a Debt to “Wise Latinas” Latinx Heritage Month | Smithsonian Channel
00:01:06
Why the ‘Stonehenge of Atlit Yam’ was Held in Such High Regard Secrets | Smithsonian Channel
00:04:00
15 Most Powerful Vehicles Ever Made
00:22:38
The Incredible Predictions Of Edgar Cayce
00:15:30
Malaya: Greatest British Catastrophe of World War Two DOCUMENTARY
01:30:12
Goodbye, SOFIA, the Telescope That Actually Flew
00:05:28
Lights Out | Wild Bear Rescue S01E12 | Go Wild
00:22:24


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