Back in 2014, a bunch of scientists posited that our closest planetary neighbor, Venus, might be a viable option for human habitationânamely in the form of solar-powered airship cloud cities (they just watched Empire). In light of some new information, we may want to alter that deal and forget that we ever concocted such a plan.
Weâve long known that Venusâ surface is tumultuous. Hot enough to melt lead. Sulfuric acid rainstorms. Itâs not a friendly placeâhence living above the clouds. According to Gizmodo, scientists have just discovered electric winds that probably mean itâs not very friendly up there, either.
Glyn Collinson, the lead author on a study published in Geophysical Research Letters, calls Venusâ electric field a âmonster lurking in the sky.â Scientists have long suspected that all planets with atmospheres have electric fields (layers of charged particles in the ionosphere that generate low levels of electricity), but until recently they’ve been unable to detect it on any planetâeven our own.
Because of its undetectable charge, Earth is thought to have an electric field of less than two volts. Venusâ is five times stronger. The data was collected in a mission that measured the planetâs electric field for the very first time. Check out the NASA graphic below:
âWe donât really know why Venusâ field is so much stronger, but itâs clearly possible for a planet with Earthâs mass and forming at a similar distance to have an enormous electric field,â Collinson said. âIf we want to find habitable planets around other stars, this is a new requirement.â
Indeed, the electric field is so strong that it generates a âwindâ that acts more like solar wind than gusts of air. It effectively strips away the atmosphere, probably explaining why Venus has such a small fraction of water relative to earth (because of the strong wind, water molecules’ oxygen atoms reach escape velocities and leave the hydrogen behind).
As Collinson notes, this news is important in our quest to find other habitable planets; one more issue to factor into the equation when we think about leaving our planet, lest we get torn apart by an electric monster in the sky.
IMAGE:Â tonynetone/NASA