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SciShow
Mind the (Solar System's) Gap
Giant disks around baby stars filled with gas and dust provide the material to make all sorts of planets, and new evidence proves that our solar system’s had a massive gap in it! And the water vapor in Jupiter’s moon, Europa, might not...
Curated Video
Light year (ly)
The distance travelled by light in a vacuum in a year, equal to about 9.5 trillion kilometres.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise...
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise...
NASA
The Rocket Ranch: Episode 2: Some Like it Hot
Even though our Sun shines bright in the sky, it is shrouded in mystery. In this episode, we'll sit down with scientists working to get us closer to the Sun than ever before.
Next Animation Studio
Earth’s newest deep-space probe reaches edge of solar system
On 17 April the half-ton New Horizons spacecraft became only the fifth man-made machine to fly more than 50 astronomical units into deep space.
Khan Academy
Parsec Definition, Stars, Black Holes and Galaxies, Cosmology and Astronomy
What is a parsec? Sal's video explains that a parsec is 3.26 light years and that the word itself can be broken down into "par" (meaning parallax) and "sec" (meaning one arc second). He uses illustrations, diagrams, and trigonometric...
PBS
Pbs Learning Media: New Horizons Covers the Distance
When describing distances in the solar system, it can be cumbersome to use common units of length, such as kilometers or miles. Instead, scientists use astronomical units to make the numbers more manageable. Watch this video description...
Khan Academy
Khan Academy: Stellar Parallax: Parsec Definition
Defines the word 'parsec,' which is a unit of distance in space, and explains its origin. Also demonstrates examples where this unit of measurement would be used.