NASA
IceBridge Flies 300 Hours of Antarctic Science Flights
Flying low over the Earth’s southernmost continent, Operation IceBridge is wrapping up its eighth consecutive field season of mapping the ice sheet and glaciers of Antarctica, as well as the surrounding sea ice. With more than 300 hours...
Curated OER
Worms On The Moon
A simulated worm-landing on the moon will surely hook your pupils into your next science lesson! Worms demonstrate what it would be like to observe the moon first hand.
Khan Academy
Radius of Observable Universe (Correction), Cosmology and Astronomy
A two-minute video corrects a slight error in the previous Khan Academy video about the observable universe. Sal points out that 300,000 years does not significantly impact the number 13.7 billion, or the estimated time of the Big Bang.
Khan Academy
Radius of Observable Universe, Scale of the Universe, Cosmology and Astronomy
The concept of the universe can be incredibly complex on both physical and mathematical levels. Yet Salman Khan can explain concepts that lead to conclusions about the universe's size. He uses intriguing diagrams and presents information...
Khan Academy
Parallax in Observing Stars, Cosmology and Astronomy
Parallax is the apparent change of an object determined by the line of sight. Sal defines the concept of parallax and applies it to how we determine the relative distance between us and nearby stars. He draws a diagram to illustrate what...
Deep Look
Roly Polies Came From the Sea to Conquer the Earth
Roly polies or pill bugs? No matter what you call them, these organisms are unique. Biology scholars discover a true evolutionary success story in a video about tiny, land-dwelling crustaceans. The narrator describes their journey from...
Khan Academy
Big Bang Introduction, Scale of the Universe, Cosmology and Astronomy
Sal explains the Big Bang and the spatial concepts of infinity versus a 'sphere' of expanding matter in detail.
Khan Academy
Hubble Image of Galaxies, Scale of the Universe, Cosmology and Astronomy
Sal gives an example of where the Hubble telescope looks, as well as the level of detail that the camera can see.
Khan Academy
Intergalactic Scale, Scale of the Universe, Cosmology and Astronomy
Sal narrates the last video, concentrating on the scale between stars and galaxies themselves.