Planets
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PlanetsScientists Say: Habitable Zone
The habitable zone is the region around a star where temperatures could be right for worlds to host liquid water.
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SpaceLet’s learn about surviving a trip to Mars
Getting to and surviving on the Red Planet will take lots of innovation.
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PlanetsNoises sound totally different on Mars than on Earth. Here’s why
The Perseverance rover recorded the sound of laser pulses on Mars. Scientists used those recordings to determine the Martian speeds of sound.
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SpaceAncient volcanoes may have left ice at the moon’s poles
Volcanic eruptions billions of years ago may have produced several temporary atmospheres on the moon that held water vapor.
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PlanetsThe InSight lander has caught a large ‘earthquake’ on Mars
This magnitude 5 quake is offering scientists a peek at what’s going on beneath the Martian surface.
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PlanetsAnalyze This: Some 5,000 planets orbit stars other than our sun
A new cache of confirmed exoplanet discoveries marks a milestone in planets found beyond our solar system.
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SpaceExplainer: All about orbits
A handful of rules can describe the route some object repeatedly takes around another in space. Calculating that path, however, can be quite complex.
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EarthScientists Say: Atmosphere
An atmosphere is an envelope of gas around a planet, dwarf planet or moon.
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PlanetsMercury’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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PlanetsLet’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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PlanetsNo, 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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SpaceThe 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.