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On this day in 1732 – July 11th – French astronomer Jérôme Lalande was born.

He held the chair of astronomy in the Collège de France in for nearly half a century and a number of his pupils became distinguished astronomers. As well as being an observer, Lalande also gave popular lectures and wrote about astronomy.

Last edited by Mona - Astronomy; 07/15/17 07:11 AM.
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On this day in 2000 – July 12th – the Zvezda service module was launched to the International Space Station (ISS).

Zvezda (meaning "star") was the third module of the ISS and it contains the life support systems and is the central part of te the Russian Orbital Segment.

Last edited by Mona - Astronomy; 07/15/17 07:04 AM.
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On this day in 2015 – July 14th – NASA's New Horizons mission made a historic fly-by of Pluto and its moons.

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On this day in 1965 – July 14th – Mariner 4 performed the first successful flyby of the planet Mars.

The probe returned the first pictures of the Martian surface.

Last edited by Mona - Astronomy; 07/16/17 09:52 AM.
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On this day in 1943 – July 15th – Irish astrophysicist Jocelyn Bell Burnell was born.

As a graduate student she first noted what turned out to be rotating neutron stars. Until then neutron stars were only theoretically an endpoint of the evolution of massive stars.

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On this day in 1969 – July 16th – Apollo 11 was launched.

Neil Armstrong, Buzz Aldrin and Michael Collins set off for the Moon. They weren't the first to visit our satellite, but two of them would be the first to land on it.

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On this day in 1994 – July 16th – the first fragment of Comet Shoemaker-Levy 9 impacted Jupiter.

The comet was torn apart by tidal forces in Jupiter's strong gravity. It was the first time that such an impact was witnessed.

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On this day in 2011 – July 16th – NASA's Dawn spacecraft entered orbit around the asteroid Vesta.

After Dawn's mission was completed at Vesta, she moved on to Ceres and is still studying that dwarf planet/asteroid.

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On this day in 1850 – July 17th – John Adams Whipple took the first stellar photograph.

The photo was taken at the Harvard College Observatory of the star Vega.

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On this day in 1975 – July 17th – NASA's Apollo spacecraft and a Soviet Soyuz docked in space.

It was the first joint U.S.–Soviet space flight, as a symbol of the policy of détente that the two superpowers were pursuing at the time.

Last edited by Mona - Astronomy; 07/19/17 01:17 AM.
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