Dead star emits perplexing shock wave for 1,000 years

In this case, RXJ0528+2838 is orbited by a still-living star similar in size to our sun. In such cases, material from the ...
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Supersonic tests defy a 70-year-old rule of metal strength

When engineers want to make a metal stronger, one of the most reliable strategies is to use smaller grains—the microscopic ...