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Autumn equinox and autumn sky, discoveries and discoverers, an ancient festival that marked the transition from the light to darkness. Can you identify them?

Autumn Equinox to Halloween – Quiz

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Autumn begins on the equinox, the day the Sun crosses the equator. The earliest known civilizations celebrated the equinoxes, and they're still celebrated in many places. One of the biggest autumn celebrations is the Chinese Moon Festival. A traditional Chinese garden has a moon-watching pavilion.

Autumn Equinox

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Rosetta, the European Space Agency (ESA) spacecraft, traveled for ten years and billions of miles in order to rendezvous with a comet, accompany it as it moved through the inner Solar System past the Sun, and deploy a lander.

Rosetta the Comet Chaser

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Neptune is the planet discovered mathematically and whose detection led to a heated rivalry between British and French astronomers. But who was the first person actually to see Neptune?

Who Discovered Neptune

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On October 4, 1957 a small object had people around the globe looking excitedly - or anxiously - up at the sky. It's so common now that people today could scarcely imagine the effect that the first artificial satellite had. Sputnik began the Cold War's space race.

Sputnik - The Space Race Begins

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By the late 19th century we knew Jupiter, Saturn, Uranus and Neptune had moons. But it seemed that there were no Martian moons. Then in 1877 American astronomer Asaph Hall surprised the world with two Martian moons. Why did it take so long to find them? And why did Hall call them Fear and Terror?

Moons of Mars - Deimos

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In northern hemisphere summer, the ancient zodiac constellation Sagittarius stands low on the southern horizon. It's a special constellation, for when you see Sagittarius, you're looking into the heart of the Milky Way.

Sagittarius the Archer

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A flying horse on feathered wings - it's the constellation Pegasus. You can spot it by its most noticeable feature, the Great Square of Pegasus, though one star of the square belongs to poor Princess Andromeda. There's also a star in Pegasus very like our Sun with a planet circling it.

Pegasus the Winged Horse

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Through the vision and dedication of Edward Pickering, Harvard College had one of the world's top observatories. Pickering had a secret weapon: a team of women computers. One of them was Mina Fleming who began her employment as a housekeeper and ended it as an astronomer of international repute.

Williamina Fleming

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In northern hemisphere summer, the ancient zodiac constellation Sagittarius stands low on the southern horizon. It's a special constellation, for when you see Sagittarius, you're looking into the heart of the Milky Way.

Sagittarius the Archer


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