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NASA Wants to Send Nuclear Rockets to the Moon and Mars NASA could place human missions to the moon or Mars in political jeopardy if it opts to use highly-enriched uranium as a power source in space, warns a leading   specialist on nuclear proliferation. A nuclear rocket engine would be twice as efficient as the chemical engines powering rockets today. At the center of NASA’s nuclear rocket program is Bill Emrich, the man who  literally wrote the book on nuclear propulsion . “You can do chemical propulsion to Mars, but it’s really hard,” says Emrich. “Going further than the moon is much better with nuclear propulsion.”  That’s another topic we want to examine at the symposium. The claim from some in NASA … is that this type of reactor for use on the surface of a planetary body … would be much heavier if it used low-enriched uranium rather than highly-enriched uranium. They say the reactor core would require much more uranium and that therefore the core would be bi...

Xiaomi Unveils Mi 9 Pro 5G and Wraparound-Screen Mi MIX Alpha Xiaomi  on Tuesday introduced a refresh of the Mi 9 Pro with support for 5G and a groundbreaking smartphone with a wraparound display.  The Mi 9 Pro 5G (pictured above), with a base price of 3,699 yuan, or US$520, works with 5G offerings of China's three main carriers -- China Mobile, China Unicom and China Telecom -- and supports speeds from 1.78 Gbps to 2.02 Gbps, or four times the speed of typical 4G services.  The unit has a 6.39-inch  AMOLED   FHD+ Dot Drop display and is built around an enhanced Qualcomm Snapdragon 855+ processor that can deliver 15 percent better graphics performance than an ordinary 855 chip.  Xiaomi has taken fast charging to a new level. Its 40W fast wired charger can charge the Mi 9 Pro battery fully in 48 minutes. The phone also supports 30W wireless charging and 10W reverse charging.  In the camera department, the Mi 5 Pro is a triple threat with a 48MP ma...