Solution to a cosmic mystery—the eccentric orbits of trans-Neptunian objects
As a result, thousands of smaller celestial bodies in the outer solar system outside Neptune's orbit were deflected into ...
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NASA's solar-sailing spacecraft has a bent boom and is still tumbling in Earth orbit (photo)
NASA's technology-demonstrating Advanced Composite Solar Sail System (ACS3) has a bent boom in Earth orbit, a newly released photo shows. The ACS3 spacecraft launched April 23 to test key aspects ...