NASA’s Webb Just Found Something Unexpected Beyond Neptune

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NASA’s Webb Just Found Something Unexpected Beyond Neptune

Trans-Neptunian objects (TNOs) are icy bodies that vary widely in size, from large dwarf planets like Pluto and Eris—each about 1,500 miles in diameter—to much smaller objects, such as Arrokoth, which is only a few dozen miles across. These distant objects orbit the Sun at distances comparable to, or even far beyond, Neptune’s orbit. The [...]

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NASA’s Webb Just Found Something Unexpected Beyond Neptune – Sky News: The Latest News from the World

Trans-Neptunian objects (TNOs) are icy bodies that vary widely in size, from large dwarf planets like Pluto and Eris—each about 1,500 miles in diameter—to much smaller objects, such as Arrokoth, which is only a few dozen miles across. These distant objects orbit the Sun at distances comparable to, or even far beyond, Neptune’s orbit. The […]

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Webb Reveals The Ancient Surfaces of Trans-Neptunian Objects - Astrobiology

Trans-Neptunian objects (TNOs) are icy bodies ranging in size from Pluto and Eris (dwarf planets with diameters of about 1,500 miles) down to tens of miles (Arrokoth) and even smaller. TNOs are on orbits comparable in size, or even much larger than, that of Neptune. The existence of TNOs was postulated by Kenneth Edgeworth, and […] The post Webb Reveals The Ancient Surfaces of Trans-Neptunian Objects appeared first on Astrobiology.

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NASA’s Webb Reveals the Ancient Surfaces of Trans-Neptunian Objects

Some exciting new developments on TNOs (Trans-Neptunian objects), from NASA: Of the TNOs whose orbits were perturbed during giant-planet migration, it is difficult to trace them back to where they formed. Yet it is only by studying the composition of individual TNOs that we can hope to map out the composition of the primordial outer disk. TNOs are on very distant orbits from the Sun, and are very cold, below minus 280 degrees Fahrenheit (about m…

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NASA’s Webb Reveals the Ancient Surfaces of Trans-Neptunian Objects – James Webb Space Telescope