HS-ESS1-2

Construct an explanation of the Big Bang theory based on astronomical evidence of light spectra, motion of distant galaxies, and composition of matter in the universe.

More Stories in HS-ESS1-2

  1. Space

    Explainer: Understanding meteors and meteor showers

    Meteors regularly enter Earth’s atmosphere. Most ‘shooting stars’ pose few risks to life on the ground, but the rare big ones can be lethal.

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  2. Planets

    Asteroids may have delivered water to early Earth

    Scientists shot mineral pellets at a simulated planet. It showed an impact wouldn’t have boiled off all of an asteroid’s water.

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  3. Planets

    Small, distant worlds are either big Earths or little Neptunes

    The Kepler space telescope data are in. They split Earth-like exoplanets into two groups and reveal 10 new rocky planets in the ‘Goldilocks’ zone.

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  4. Planets

    Jupiter may be the solar system’s oldest planet

    Jupiter’s early existence may explain the odd arrangement of planets in the solar system, a new study suggests.

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  5. Planets

    Hot, hot planet sets sizzling new record

    Astronomers have discovered an odd new exoplanet. Called KELT 9b, is the hottest non-star known.

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  6. Physics

    Gravitational waves detected yet again

    For the third time in 16 months, scientists have announced detection of gravitational waves washing over the spacetime environment in which Earth resides. This seems to show that such waves may not be rare.

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  7. Space

    How the solar system’s tail disappeared

    A bubble envelops the planets and other material in the solar system. New data show it does not have a long tail but is round.

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