40 results found for astronomy

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01:21:00

Touchdown on Titan

by John Zarnecki
Touchdown on Titan
for 14-19 and upwards,
Lectures | 14-19 and upwards | 14 years ago | 1535 views
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After an interplanetary journey of 7 ¬ years, the ESA's probe Huygens landed on the surface of Saturn's largest moon, Titan. Professor Zarnecki describes the journey of the probe as well as its final dramatic plunge to the surface and presents the r....

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00:10:00

Voyages through the heliosphere

by Alan Cummings
Voyages through the heliosphere
for 14-19 and upwards,
Lectures | 14-19 and upwards | 14 years ago | 1410 views
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A series of papers in Nature analyse recent observations from the outer limits of the Solar System, and help build up a picture of how the Sun interacts with the rest of the Galaxy.

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00:33:00

What We Learn When We Learn that the Universe is Accelerating

by Saul Perlmutter
What We Learn When We Learn that the Universe is Accelerating
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1452 views
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The 1998 discovery that the universe's expansion is accelerating was not only unexpected, but it also led to the postulation of a previously-unknown 'dark energy' forming almost three-quarters of the "stuff" of the universe. How was this discovery ma....

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00:02:00

Where do you come from?

by Harry Kroto
Where do you come from?
for 11-14 and upwards,
Lectures | 11-14 and upwards | 16 years ago | 1839 views
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A simple introduction to our ideas about where the elements which make up the Earth originated.

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