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originally posted by: MatterOfPerspective
a reply to: MarsIsRed
The fact of the matter is that they could be telling you anything. The only bots I see here are the gullible ones.
Actually, it didn't go sailing off into deep space;
A little research goes a long way.
Which is what Taguchi thinks is going on on Venus. “We suppose that highlands are a key to generating the stationary gravity waves, because most of the bows—and we have found more than 15 bows so far—have appeared above the highlands at their centers,” Taguchi says. The giant initial bow the infrared camera saw in 2015, for instance, was over Aphrodite Terra, a rugged, ridgy area about the size of Africa. Certain lower atmosphere or surface conditions could cause vertical gravity waves to propagate to the tops of Venusian clouds, creating a hot, bright, stationary bow. The shape will have something to do with the exact structure of the mountain below, but there are a lot of other variables that go into making that bow—not that you could see it. “In the visible spectrum, Venus is uniformly bright because the cloud particles just scatter solar particles,” Taguchi says. “Human eyes can’t see it. That’s why I’m glad to have a sensor that can go there in place of me.”
Prior to this study, scientists didn’t believe that gravity waves could propagate this high up into the atmosphere, thinking they’d be confined to the lower atmosphere. And the exact hows and whys of these bow structures are still elusive. (Not to mention a sample size of about 15 is pretty dang small.) “It can’t be as simple as surface winds flowing over mountains, because the feature has been seen only in the late afternoon on Venus,” says Gerald Schubert, a geophysicist at UCLA. Why time of day would make giant vertical gravity waves more or less likely is anybody’s guess: “That’s what we have to answer in the next step of the study,” Taguchi says.
originally posted by: MatterOfPerspective
a reply to: wildespace
Posting a drawing is not research. I would like to see the orbital motions of Venus and the changing position of the probe during the past 5 years.
I would like to see the orbital motions of Venus and the changing position of the probe during the past 5 years.
With its main means of propulsion ruined, Akatsuki flew past Venus and entered solar orbit, and scientists and engineers scrambled to recover the mission. They came up with an innovative solution: burn its four reaction control thrusters for over 20 minutes — much longer than before — at the next available opportunity to enter orbit around Venus. Engineers tested a series of shorter burns in 2011 to show that this attempt was indeed possible. The spacecraft was then placed in hibernation mode to extend its life.
The 2015 orbital insertion places Akatsuki in a slightly wider-ranging orbit than originally intended. The planned track would have carried the spacecraft around Venus every 30 hours, with a closest approach of 300 km. This week’s burn placed Akatsuki in a 13.6-day elliptical orbit that brings it as close as 400 km to the surface. Next March, JAXA is planning a series of engine burns that should shrink Akatsuki’s elliptical orbit to a period of 9 days.
The irony here (that I'm sure you won't be able to appreciate) is that you are typing out these idiotic and utterly imbecilic arguments on a device (computer) which was developed, in part, by the needs of the space program that put this science package in orbit.
Given the timing of the events, I would surmise that perhaps isolation has something to do with how these gravity waves are formed.
The sulfur present in the atmosphere may even be utilized by microbes to help resist the effects of the intense life-killing UV radiation. The clouds are thought to be mostly uninhabitable, with temperatures at the base reaching 206F, and negative 46F at the top. There is, however, a band in the middle of the atmosphere that is actually at a rare Earth-like room-temperature. Unlike the clouds of Earth, these Venusian clouds are much thicker and more stable, with dust particles able to float for months at a time instead of a few days. This is perhaps sufficient time to be biologically sustainable enough for microbes to reproduce. Certainly not an ideal locale for the aspiring biologist hoping for a hands-on experience!
It is suggested that the centre of the bow-shaped structure is located at the western slope of the western high land of Aphrodite Terra, approximately 15◦ west of the peak in the surface topography.