The same happens when they're annihilated. The temperature increase is due to how much dark matter enters the planet, and the energy that's input can also accelerate the planet's rotation period.
Morning Overview on MSN
Venus spins backward compared with nearly every other planet in the solar system
Venus takes about 243 Earth days to complete a single rotation, and it does so in the opposite direction from nearly every ...
The story of Earth’s atmospheric oxygenation is one of transformation, shaped by both biological and planetary forces. While scientists have long debated the causes behind the stepwise rise of oxygen, ...
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