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Probe technology was applicable to these outer-planet probes therefore, Requirements of probes entering the atmospheres of Uranus and Neptune at These results show that the asymmetry of the magnetopause is highly dependent on the rotation of Uranus and its IMF orientations.Įntry trajectories, decelerations, and heating and heat shielding Meanwhile, the IMF orientation also modulated the variation of the flaring parameter and cusp indentation.
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In contrast, the flaring parameter and cusp indentation were strongly impacted by Uranus' rotation. During this season, the stand‐off distance fluctuated within a small range. In this study, we quantitatively studied Uranus' magnetopause in terms of the subsolar stand‐off distance and the flaring parameter and tracked the variation in cusp indentation, which are good indicators to describe the general topology of the boundary. In addition, the temperature of the equatorial region, which receives less sunlight over a Uranian year, is nevertheless about the same as that at the poles.To investigate the diurnal variations of the magnetopause boundary under different Interplanetary Magnetic Field (IMF) orientations during the solstice season, we implemented a multifluid magnetohydrodynamic model of Uranus' magnetosphere in combination with Voyager 2 observations, which provided a good ability to simulate and predict the variability of the magnetospheric boundaries. The spacecraft also found a Uranian magnetic field that is both large and unusual. Voyager data showed that the planet’s rate of rotation is 17 hours, 14 minutes. Several instruments studied the ring system, uncovering the fine detail of the previously known rings and two newly detected rings. The cameras also detected 10 previously unseen moons. Voyager 2’s images of the five largest moons around Uranus revealed complex surfaces indicative of varying geologic pasts. Both Voyager 2 and its twin, Voyager 1, will eventually leave our solar system and enter interstellar space. Voyager 2’s next encounter was with Neptune in August 1989. Since launch on August 20, 1977, Voyager 2’s itinerary has taken the spacecraft to Jupiter in July 1979, Saturn in August 1981, and then Uranus. Voyager 2 radioed thousands of images and voluminous amounts of other scientific data on the planet, its moons, rings, atmosphere, interior and the magnetic environment surrounding Uranus. NASA’s Voyager 2 spacecraft flew closely past distant Uranus, the seventh planet from the Sun, in January 1986.Ī map of the outer solar system (Picture AFP/Getty)Īt its closest, the spacecraft came within 81,500 kilometres (50,600 miles) of Uranus’s cloudtops on January 24, 1986. It would also drop an atmospheric probe to take a dive into Uranus’s atmosphere to measure the levels of gas and heavy elements there. Three orbiters and a fly-by of Uranus, which would include a narrow angle camera to draw out details, especially of the ice giant’s moons. One of the proposed missions includes a fly-by of Uranus, which would include a narrow-angle camera – and a probe which would drop into Uranus’s atmosphere to measure gas and heavy elements.
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‘The preferred mission is an orbiter with an atmospheric probe to either Uranus or Neptune – this provides the highest science value, and allows in depth study of all aspects of either planet’s system: rings, satellites, atmosphere, magnetosphere,’ says Amy Simon, co-chair of the Ice Giants Pre-Decadal Study group. The planned probes would take off in the 2030s, New Scientist reports. These missions include three orbiters and a possible fly-by of Uranus. A NASA group outlined four possible missions to the ice giants Uranus and Neptune. And one of the things it might be investigating is all that gas. Up until now, NASA has never paid too much attention to Uranus – but now the space agency wants to take a good, long look.