Space
Rover finds ‘layer cake’ below ground on moon’s farside
China’s rover finds the moon’s farside is more rugged and cratered than the nearside. Now scientists want to know why.
HS-ESS1-6
Apply scientific reasoning and evidence from ancient Earth materials, meteorites, and other planetary surfaces to construct an account of Earth's formation and early history.
More Stories in HS-ESS1-6
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SpaceExplainer: 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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EarthExplainer: Understanding geologic time
Geologic time is unimaginably long. Geologists puzzle it out using a calendar called the Geologic Time Scale.
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PlanetsAsteroids 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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PlanetsJupiter 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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PlanetsJupiter gets surprisingly complex new portrait
NASA’s Juno spacecraft has sent back unexpected details about Jupiter, giving scientists their first close-up of this gas giant.
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PlanetsHow Earth got its moon
How did our moon form? Scientists are still debating the answer. It may be the result of some one big impact with Earth — or perhaps many small ones.
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SpaceCool Jobs: Probing Pluto
The New Horizons mission captivated the world as it flew by Pluto. Here are some of the people who made that possible.