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95%VideoApr 2013

The Known Universe

(6:31) Stunning journey through the known universe as mapped through astronomical observations.


94%VideoMar 2008

Time lapse: The Milky Way

(0:57) Setting of the stars followed by the moonrise filmed in Chile.


93%VideoDec 2011

Feeding time for a black hole

(5:18) 27,000 light years away at the centre of our galaxy, the Milky Way, there lies a supermassive black hole with a mass four million times our sun.


92%VideoFeb 2012

The darkness at the heart of our galaxy

(4:52) Astronomers using infrared wavelengths, have discovered what lies at the centre of our galaxy, the Milky Way.

91%VideoNov 2009

Texas Star Party all-night time-lapse

Astrophotographer William Castleman shot a beautiful time-lapse video of the galactic centre of The Milky Way during the 2009 Texas Star Party in Fort Davis, TX


89%VideoJul 2010

How many civilisations are there in the Milky Way?

(8:28) Carl Sagan explains the Drake equation, which is used to estimate the potential number of extraterrestrial civilisations in the Milky Way.


89%AnimationAug 2010

Active night sky over Cotopaxi volcano, Equador

The night sky is far from dark and empty. As the clouds dissipate, a sky packed with stars appears to rotate around the volcano's peak. 600 light years away in our Milky Way, the Coalsack Dark Nebula and the Southern Cross (the light and dark band of stars) are clearly visible. Satellites streak by from several directions. When thin clouds are overhead, the brightest stars twinkle. Lights of climbers flash on the volcano side (starting around 1:13). Time-lapse movie by Stephane Guisard.


88%VideoJul 2011

How big is our galaxy compared to others?

To get an idea how small (or big) our galaxy is, try to imagine this. Light travels at 186,000 miles per second, that's about seven times around the globe in one second. One light year is how far light travels at that speed, non stop for one year. Our galaxy, the Milky Way, is over 100,000 light years across. And it's tiny compared to IC 1011, the biggest galaxy so far discovered.


88%VideoSep 2010

The Milky Way - Getting the big picture

NASA's Spitzer Space Telescope is on a mission to create a pictorial guide to the past, present and future of stars in our galaxy. A slice of space in two and a half billion infrared pixels.


88%VideoOct 2010

Photographers of the night

Astro-photographers drawn to the Atacama desert in Chile to capture the unbearable beauty of the southern sky. Perfect viewing conditions over 300 nights in the year.