The constellation Corvus, the crow, is home to Superman's fictional home planet Krypton.

The constellation Corvus, the crow, is home to Superman's fictional home planet Krypton.

Saturn has been a very nice visitor on warm nights this summer. But the ringed planet's southern position in the sky makes for a brief visit, so it is now starting to make its exit.

Saturn has been a very nice visitor on warm nights this summer. But the ringed planet's southern position in the sky makes for a brief visit, so it is now starting to make its exit.

Before the glare of the moon returns to the evening sky, use the planets Mars to find The Teapot.

Before the glare of the moon returns to the evening sky, use the planets Mars to find The Teapot.

This galaxy - nicknamed 'little lion' - contains the lowest level of heavy elements ever detected in a gravitationally bound system of stars.

This galaxy - nicknamed 'little lion' - contains the lowest level of heavy elements ever detected in a gravitationally bound system of stars.

Scientists expect it to remain our planet's companion for centuries.

Scientists expect it to remain our planet's companion for centuries.

Researchers want to search for planets around ancient, metal-poor stars.

Researchers want to search for planets around ancient, metal-poor stars.

Lander may have exploded after crashing onto the planet.

Lander may have exploded after crashing onto the planet.

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