Space

More Stories in Space

  1. Earth

    Scientists Say: Atmosphere

    An atmosphere is an envelope of gas around a planet, dwarf planet or moon.

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  2. Space

    Scientists Say: Constellation

    Constellations are clusters of related things, especially the stars that form patterns in the night sky — some of which date back to ancient times.

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  3. Planets

    Mercury’s surface may be studded with diamonds

    Billions of years of meteorite impacts may have transformed much of Mercury's graphite crust into precious gemstones.

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  4. Planets

    Let’s learn about Pluto

    Once known as a pipsqueak planet, Pluto is now the solar system’s best known dwarf planet.

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  5. Space

    Space trash could kill satellites, space stations — and astronauts

    As private companies prepare to sprinkle space with tens of thousands of satellites, experts worry about the mushrooming threat of space junk.

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  6. Physics

    Scientists Say: Dark Energy

    Dark energy is the unknown force causing the universe to expand faster and faster.

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  7. Space

    Wild art? No, it’s a radio image of the heart of our Milky Way

    Eyelash-like radio filaments accent the brightest feature in this image — a supermassive black hole.

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  8. Planets

    No, organic molecules alone don’t point to life on Mars

    These carbon-based molecules, found in a meteorite, may reflect merely a mixing of water and minerals on the Red Planet over billions of years.

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  9. Health & Medicine

    Here’s how a new sleeping bag could protect astronauts’ eyesight

    A new sleeping bag could avoid vision problems on long space flights due to microgravity. It counters a fluid buildup behind astronauts’ eyes.

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