Ranked #1
Geometry of the Universe
Geometry of the Universe
Russell Stannard explains why standard Euclidean geometry doesn't apply when considering the geometry of outer space.
23 Jan 2009
•
11mins
Ranked #2
The Scale of Our Galaxy
The Scale of Our Galaxy
A route map to the stars. The Hipparcos satellite measured the position of stars with better precision than ever before.
23 Jan 2009
•
3mins
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The Shape of Our Galaxy
The Shape of Our Galaxy
Infra-red satellites. The DIRBE experiment on NASA's Cosmic Explorer opened a new window into the Milky Way.
23 Jan 2009
•
5mins
Ranked #4
The Expanding Universe
The Expanding Universe
Russell Stannard uses simple analogies to explain difficult concepts. The expansion of space, and the cosmological red-s... Read more
23 Jan 2009
•
6mins
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Measuring Black Holes
Measuring Black Holes
What is the connection between black holes and cosmic jets? Scientists measure the mass and gravitational energy of blac... Read more
23 Jan 2009
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4mins
