spacecraft tagged posts

Uranus’s Swaying Moons will help Spacecraft Seek Out Hidden Oceans

Ariel, Uranus’s fourth largest moon, is thought to be made of equal parts rock and ice. A new computer model developed at the University of Texas Institute for Geophysics could be used to detect liquid water oceans beneath Ariel’s icy surface. Credit: NASA

A new computer model can be used to detect and measure interior oceans on the ice covered moons of Uranus. The model works by analyzing orbital wobbles that would be visible from a passing spacecraft. The research gives engineers and scientists a slide-rule to help them design NASA’s upcoming Uranus Orbiter and Probe mission.

When NASA’s Voyager 2 flew by Uranus in 1986, it captured grainy photographs of large ice-covered moons...

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Slingshotting Around the Sun would make a Spacecraft the Fastest Ever

Top: Image of the test set-up for the thermal shield.
Credit – Benkoski et al.
Bottom: Graphic depicting the development path for the solar thermal propulsion system.
Credit – Benkoski et al.

NASA is very interested in developing a propulsion method to allow spacecraft to go faster. We’ve reported several times on different ideas to support that goal, and most of the more successful have utilized the sun’s gravity well, typically by slingshotting around it, as is commonly done with Jupiter currently.

But, there are still significant hurdles when doing so, not the least of which is the energy radiating from the sun simply vaporizing anything that gets close enough to utilize a gravity assist...

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