Planets
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PlanetsIn a first, astronomers spot the aftermath of an exoplanet smashup
Infrared light from a distant star appears to be leftovers of an impact between a pair of Neptune-sized worlds.
By Elise Cutts -
SpaceFour researchers on Earth are spending a year on ‘Mars’
A crew of four entered Mars Dune Alpha in Houston, Texas. They will remain isolated inside for a year, living and working as if on the Red Planet.
By Payal Dhar -
SpaceLightning dances through Jupiter’s skies much like it does on Earth
Data from NASA’s Juno spacecraft hint that Jupiter’s lightning extends in jagged steps as it does on Earth.
By Nikk Ogasa -
PlanetsIn a first, telescopes have caught a star eating a planet
A burst of light and a cloud of dust are signs that a distant star swallowed a giant planet.
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EarthOne collision could have formed the moon and started plate tectonics
A hypothetical planet slamming into Earth 4.5 billion years ago might have set subduction into motion.
By Nikk Ogasa -
PlanetsResearch on exoplanets took top award at 2023 Regeneron ISEF
Six young researchers took home the top awards, each valued at a minimum of $50,000. Hundreds more shared nearly $9 million in prizes at international event.
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PlanetsLet’s learn about Jupiter’s moons
Jupiter has nearly 100 known moons — some of which look like prime spots to search for alien life.
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SpaceScientists Say: Accretion Disk
Cosmic swirls of gas, dust and plasma, accretion disks reveal the shadowy silhouettes of black holes and more.
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PlanetsPlanets like Star Wars’ Tatooine could be fit for life
Like Luke Skywalker’s home, planets orbiting two stars may be plentiful. A new computer model suggests that many of those worlds could sustain life.
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PlanetsSaturn’s moon Enceladus wears a thick blanket of snow
Pits on the frosty moon reveal the snow’s surprising depth, up to 700 meters (2,300 feet) in some places.
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PlanetsThe dwarf planet Quaoar hosts an impossible ring
Quaoar’s ring lies outside the Roche limit. That’s an imaginary line beyond which rings aren’t thought to be stable.
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PlanetsMars might still be volcanically active, quakes there suggest
Seismic rumblings picked up by NASA’s InSight lander hint at molten rock moving deep below the planet’s fractured surface.