It is not hard to speed up of slow down the spin of a planet. You just need the right engines placed in the right location of hit the planet with a nice sized rock with a glancing blow. Either scenario would either speed up or slow down rotation. This is simple physics.
Is there life adrift in the clouds of Venus? In the search for extraterrestrial life, scientists have turned over all sorts of rocks. Mars, for example, has geological features that suggest it once had -- and still has -- subsurface liquid water. Scientists have also eyed Saturn's moons as well as Jupiter's as possible havens for life in the oceans under their icy crusts. Now, however, scientists are dusting off an old idea that promises a new vista in the hunt for life beyond Earth: the clouds of Venus. Source 9u.
Great to know that studies are being conducted about Venus since it is near us. Venus the goddess of beauty and love is an inhospitable and deadly planet for humans. But it really is beautiful to see Venus at night.
Could acid-neutralizing life-forms make habitable pockets in Venus’ clouds? A new study supports the longstanding idea that if life exists, it might make a home in Venus' clouds. The study's authors identified a chemical pathway by which life could neutralize Venus' acidic environment, creating a self-sustaining, habitable pocket in the clouds. Source 1x.