The trans-Neptunian object Altjira, 44 times farther from the Sun than Earth is, could be the second known trinary, confirming a theory about the formation of our solar system.
Kuiper Belt
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Cinturones polvorientos ofrecen una visión más clara de la formación de exoplanetas
Las observaciones en longitudes de onda milimétricas de polvo y guijarros en 74 sistemas estelares sugieren que las migraciones planetarias podrían ser más comunes de lo que pensábamos.
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Dusty Belts Provide Clearer Insights into Exoplanet Formation
Millimeter-wavelength observations of dust and pebbles in 74 star systems hint that planetary migrations might be more common than we realized.
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Pluto’s Small Moons Are Unlike Any Other
The strange blend of surface chemistry on Nix and Hydra raises big question about the evolution of the Pluto system.
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Another Ring of Objects Might Exist in the Outer Solar System
A search for a new target for NASA’s New Horizons spacecraft suggests that space beyond the Kuiper Belt could be an unexpectedly crowded place.
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A Sugar Coating for Arrokoth
A Kuiper Belt object might contain ribose and glucose on its surface—the same elements that could have seeded life on Earth.
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Los planetas enanos muestran evidencias de reciente actividad geológica
Los grandes cuerpos del Cinturón de Kuiper y más allá podrían haber albergardo océanos en la subsuperficiales.
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Dwarf Planets Show Evidence of Recent Geologic Activity
Large bodies in the Kuiper Belt and beyond could have hosted subsurface oceans.
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Arrokoth’s Mounds Hint at How Planetesimals Form
The most remote world ever seen up close is a mash-up of smaller pieces.
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A Mission to Uranus Could Help Find Planet 9
Narrowing down the search is essential for gaining time on a high-powered telescope that could spot the hypothesized planet directly.