SciShow
Why It Took a Decade to Launch The James Webb Space Telescope | Compilation
The James Webb Space Telescope has launched! But it was a very long road to get to this point, and we’ve been following the progress for a decade!
NASA
Houston We Have a Podcast: The James Webb Space Telescope
Jonathan Homan, Project Manager for Webb's Chamber A Testing, talks about how the James Webb Space Telescope has been designed, built, and tested, especially in the vacuum chamber here at the Johnson Space Center. He also describes what...
Espresso Media
Ariane 5: Complex Operations and Precision Control
Ariane 5 part 6/8: This video provides a behind-the-scenes look at the complex process of building and launching an Ariane 5 rocket. From the assembly of various parts across different countries to the final rocket assembly in French...
NASA
Going for GOLD: Exploring the Interface to Space
GOLD is a new NASA science mission that launches in January 2018 to explore Earth’s interface to space! GOLD stands for Global-scale Observations of the Limb and Disk. It will inspect the dynamic region of near-Earth space where space...
NASA
NASA's Curious Universe: Webb Space Telescope: Go for Launch with ESA’s Ariane 5 Expert
After years of preparation and anticipation, it’s time to send the world’s most powerful telescope to space. Ariane 5 rocket expert Rudi Albat (ESA) takes you through launch day and describes why the launcher that will carry Webb to its...
The March of Time
1940: FRENCH GUIANA (Iles du Salut): Male official sitting at desk, signing papers (warden?), guard escorting prisoner, exile to prison gate, prisoner walking up sirt road. (Must serve time in Guiana, not allowed leave) French penal colony.
MOT 1940: FRENCH GUIANA (Iles du Salut): Male official sitting at desk, signing papers (warden?), guard escorting prisoner, exile to prison gate, prisoner walking up sirt road. (Must serve time in Guiana, not allowed leave) French penal...
Espresso Media
Ariane 5: Inside the Assembly of the Ariane Rocket
Ariane 5 part 3/8: The video provides a behind-the-scenes look at the assembly process of the Ariane rocket, which has become a reliable workhorse in commercial rocketry. It highlights the precision and complexity involved in building...
Next Animation Studio
Europe launches Sentinel-1A satellite to monitor climate change
The first in EU's series of earth-monitoring satellites launched aboard a Soyuz rocket from French Guiana on Thursday evening, the European Space Agency said. Sentinel-1A is launched to a height of 700 km above earth where it orbit...
Getty Images
A researcher holds a giant leech in his hand.
A researcher holds a giant leech in his hand.
Getty Images
A swollen leech slithers off a man's hairy, bloody leg.
A swollen leech slithers off a man's hairy, bloody leg.
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A leech moves over a man's submerged leg that is wrapped in webbing.
A leech moves over a man's submerged leg that is wrapped in webbing.
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A researcher places a giant leech on his leg.
A researcher places a giant leech on his leg.
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A giant leech crawls on a researcher's leg.
A giant leech crawls on a researcher's leg.
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A giant leech crawls along a researcher's leg.
A giant leech crawls along a researcher's leg.
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A leech moves under water over a man's toes.
A leech moves under water over a man's toes.
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A giant leech explores a researcher's hand.
A giant leech explores a researcher's hand.
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A large leech sucks blood from a man's arm.
A large leech sucks blood from a man's arm.
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A finger pokes at a leech as it crawls across skin.
A finger pokes at a leech as it crawls across skin.
Getty Images
A giant leech crawls on a researcher's hand.
A giant leech crawls on a researcher's hand.