HS-ESS1-4

Use mathematical or computational representations to predict the motion of orbiting objects in the solar system.

  1. 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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  2. Tech

    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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  3. Physics

    Scientists Say: Dark Energy

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

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  4. Physics

    Explainer: Gravity and microgravity

    The force of gravity holds us on the ground, keeps planets in orbit and extends throughout space. A very weak gravitational pull is called microgravity.

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  5. Space

    The long-awaited James Webb Space Telescope has a big to-do list

    The James Webb Space Telescope has been in the works for so long that new fields of science have emerged for it to study.

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  6. Space

    Astronomers may have found first known planet in another galaxy

    The spiral-shaped Whirlpool galaxy may be home to the first planet spotted outside our own Milky Way galaxy.

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  7. Planets

    Pluto is no longer a planet — or is it?

    In the 15 years since Pluto lost its status as a planet, some scientists continue to use whatever definition works best for them.

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  8. Earth

    Let’s learn about meteor showers

    Meteor showers happen when Earth’s orbit passes through trails of debris left behind by comets or asteroids.

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  9. Oceans

    Moon’s orbital wobble can add to sea-level rise and flooding

    In a dozen years or so, the tide-enhancing effects of a wobble in the moon’s orbit should lead to dramatically higher sea levels in some coastal cities.

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  10. Space

    This image may be the first look at exomoons in the making

    These observations offer some of the best evidence yet that planets around other stars have moons, or exomoons.

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  11. Space

    Born in deep shadows? That could explain Jupiter’s strange makeup

    Dust that blocked sunlight might have caused the gas giant to form in a deep freeze, a new study suggests.

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  12. Space

    Cosmic filaments may have the biggest spin in outer space

    These rotating threads of dark matter and galaxies stretch millions of light-years. Scientists want to know how their spin begins.

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