Space
Scientists Say: Gravity
Gravity is a fundamental force that attracts objects with mass to other objects with mass. It decreases with distance.
Planets
More Stories in Planets
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PlanetsLet’s learn about exoplanets
Exoplanets are planets outside of our solar system. Scientists are finding out more about them than ever before.
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SpaceDeveloping planet emerges in a swirl of gas
Images of a young star 520 light-years away show a spiral of gas and dust swirling around it. A twist inside the spiral appears to be a planet forming.
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TechWiggly wheels might help rovers plow through loose lunar soils
New design lets wheels ascend hills too steep for regular robots and paddle through loose soils without getting stuck.
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PlanetsPlanets with hydrogen skies could harbor life
Microbes can live in a hydrogen atmosphere. This points to new space worlds that host alien life.
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PlanetsLet’s learn about Jupiter
This gas giant is home to a massive storm that has lasted hundreds of years. It’s also surrounded by dozens of moons.
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EarthWeight lifting is this planetary scientist’s pastime
Beck Strauss uses magnetic fields to explore the makeup of Earth and other planets.
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SpaceScientists Say: Gas giant
These gargantuan planets, such as Jupiter and Saturn, are mostly made up of hydrogen and helium gas.
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PlanetsGlass beads help scientists puzzle out how baby planets grow
Researchers have mimicked the first stages of planet formation in the lab. All they needed were glass beads and a catapult.
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PlanetsAstronomers spot new type of storm on Saturn
These storms are bigger and longer lasting than squalls but not nearly as massive as this planet's Great White Spots.