Observations by Japan’s Venus climate orbiter Akatsuki have revealed an equatorial jet in the lower to middle cloud layer of the planet’s atmosphere, a finding that could be pivotal to unraveling a phenomenon called superrotation. Venus rotates westward with a very low angular speed; it takes 243 Earth days to rotate once. The planet’s atmosphere rotates in the same direction but at much higher angular speeds, which is called “superrotation.” The planet is covered by thick clouds that extend from an altitude of about 45km-70km...
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The quest for potentially habitable planets is often interpreted as the search for an Earth twin. And yet, some rocky planets outside our Solar System may in fact be more promising candidates for further research. Scientists have run 165 climate simulations for exoplanets that permanently face their ‘sun’ with the same side. They discovered that 2 of the 3 possible climates are potentially habitable.
Most exoplanets orbit relatively small and cool stars known as red dwarfs. Only exoplanets that orbit close to their 3star can be warm enough for liquid water...
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