Satellites versus the stars

In July 1545, King Henry VIII watched from Southsea Castle on England's south coast as his fleet sailed out to face the French - only to witness his prized warship, the Mary Rose, sink before his eyes. Raised from the Solent in 1982, the ship is now the centrepiece of the Mary Ro ...  Show more

There are problems and tasks so hard and complicated that it would take today’s most powerful supercomputers millions of years to crack them. But in the next decade, we may well have quantum computers which could solve such problems in seconds.Professor Sir Peter Knight is a Brit ...  Show more

Les satellites sont toujours plus nombreux dans le ciel nocturne. Certains prédisent même que, dans un avenir proche, ils représenteront une part non négligeables des points lumineux qu'on pourra y observer. Une telle invasion de l'espace pourrait poser certains problèmes.

How do satellites work? On this episode, Neil deGrasse Tyson and Chuck Nice explore CubeSats, space lasers, and the ecology of low Earth orbit with VP of Raytheon, Sandy Brown, and associate professor of aeronautics and astronautics, Kerri Cahoy. 

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In 1957, the Space Age began with the launch of Sputnik, the first artificial satellite. Since then, the number of objects humans have hurled toward the stars has soared to the thousands. As those objects have collided with one another, they've created more space debris in Earth' ...  Show more

In this episode:00:45 A bright satellite is concerning researchersSatellites reflect sunlight down to Earth, and some do so with such intensity it risks obscuring astronomers' observations from ground-based telescopes. A paper in Nature suggests that the telecommunications satell ...  Show more