On the scarred terrain of Arabia Terra, a region on Mars that serves as the setting for The Martian, lies a mysterious pockmark known as Ismenia Patera. New imagery released by the European Space Agency (ESA) on Thursday reveals dimensions of this feature that help contextualize its geological evolution (though its origins remain unresolved).
Source: vice.com
This week, the Axion Dark Matter Experiment (ADMX) unveiled a new result, published in the journal Physical Review Letters, that places it in a category of one: it is the world’s first and only experiment to have achieved the necessary sensitivity to “hear” the telltale signs of dark matter axions. This technological breakthrough is the result of more than 30 years of research and development, with the latest piece of the puzzle coming in the form of a quantum-enabled device that allows ADMX to listen for axions more closely than any experiment ever built.
Read More
Key technologies include a compact pre-cooler heat-exchanger that can take an incoming airstream of over 1,000C and cool it to -150C in less than 1/100th of a second. This would permit Sabre to use oxygen direct from the atmosphere for combustion instead of carrying it in a tank with the weight penalty that implies.
Read More