This oddball reflective lava world is challenging to understand
Source: phys.org
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Published: Nov 1, 2026, 12:30 AM UTC
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⏱ ~1 min read
Among Kepler and TESS's many surprising exoplanet discoveries are the ultra-short-period (USP) planets. These planets move very quickly and complete an orbit in less than 24 hours. Ancient astronomers thought that Mercury was so fast-it goes around the sun every 88 days-that...
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