Mmastodon ScienceSpace first seen 3 h ago, last 16 min ago, peak #3
Why Venus stays hotter than Mercury despite being farther from the Sun
Original: 🔥 NEW: # Mercury orbits closest to the # Sun and receives nearly four times the # energy per unit area that Venus does,
Mercury orbits closest to the Sun, receives nearly four times the solar energy per unit area that Venus does, and is the least reflective planet in the Solar System. Yet Venus holds a steady surface temperature near 462°C both day and night, because its atmosphere is about 92 times thicker than Earth's, trapping heat through an extreme greenhouse effect.
Why now: The striking contrast between Mercury's solar exposure and Venus's higher, constant surface temperature makes the greenhouse effect a shareable science fact.
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