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Area 51: What is it and what goes on there?

No-fly zone: Civilian aircraft are prohibited from flying over the base ; Restricted access roads: Only authorized personnel can enter ...

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What happened to all the water on Mars? Here's why ...

The Mars water debate continues. A team of scientists suggests vast oceans of water may not be locked within the Red Planet's crust, ...

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Ganymede — A guide to the largest moon in the solar system

Ganymede is Jupiter's largest moon and is also the largest moon in the entire solar system. It is bigger than both Mercury and dwarf planet Pluto and only ...

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'The Smithsonian Institution owns the Discovery.' Museum ...

The Smithsonian Institution says NASA relinquished full ownership of Space Shuttle Discovery, but Congress wants to force the vehicle's ...

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Saturn — A guide to the sixth planet from the sun

by CQCC from Daisy — Known for its stunning rings, Saturn is a gas giant made mostly of hydrogen and helium. This iconic planet is home to more than 200 moons, ...

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What is a blood moon?

A blood moon is the dramatic red glow of the moon during a total lunar eclipse. It happens when Earth's shadow completely covers the full moon, ...

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Where will the partial solar eclipse be visible on Sept. 21?

The partial solar eclipse will be visible from New Zealand, Antarctica and the South Pacific. Although not a total eclipse, this is a deep ...

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Where to see today's blood moon lunar eclipse

7 Sept 2025 — The September 2025 total lunar eclipse will bring a blood-red moon to skies across Asia, Australia, Africa and Europe — if you know where to ...

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Best photos of the September 2025 total lunar eclipse

A total lunar eclipse delighted stargazers overnight on Sept. 7-8 with a spectacular display of orbital mechanics that briefly turned ...

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Partial solar eclipse March 2025 livestreams

A partial solar eclipse is happening on March 29 and you can watch it all online for free. On the morning of March 29, the new moon will partially cover the ...

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What time is today's blood moon total lunar eclipse?

The September lunar eclipse will reach totality, when the moon is fully immersed in Earth's dark umbral shadow, at 1:30 p.m. EDT (1730 GMT) on ...

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A total lunar eclipse comes to North America tonight

13 Mar 2025 — The total lunar eclipse will be fully visible across North America and most of South America, where totality will seen in Brazil, Argentina, ...

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Jupiter's moons: Names, number and exploration

Four of Jupiter's moons: Io, Europa, Ganymede and Callisto — known as the Galilean moons — were the first celestial objects to be discovered ...

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Saturn's rings will 'disappear' this weekend. Here's why this ...

Saturn's iconic rings will seemingly "disappear" from view this weekend as they align edge-on with Earth for the first time since 2009.

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Saturn's Moons: Facts About the Ringed Planet's Satellites

13 Mar 2025 — Saturn has 274 moons recognized by the International Astronomical Union. The number of moons increased substantially in March 2025 when 128 new moons were ...

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