科学与环境

Asteroids venturing near white dwarfs don't break directly into dust, study reveals

来源: Phys.org - latest science and technology news stories · 发布于

Asteroids venturing near white dwarfs don't break directly into dust, study reveals
来源: Phys.org - latest science and technology news stories

When asteroids travel too close to white dwarfs, the dense remnants of stars that have exhausted their nuclear fuel, powerful gravitational forces can tear them apart. However, new research from Planetary Science Institute (PSI) suggests that these asteroids don't immediately bre

When asteroids travel too close to white dwarfs, the dense remnants of stars that have exhausted their nuclear fuel, powerful gravitational forces can tear them apart. However, new research from Planetary Science Institute (PSI) suggests that these asteroids don't immediately break into dust. Instead, most of the mass initially remains in larger fragments, revealing a previously overlooked step in how debris forms around dying stars.

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Evolutionary changes in key enzyme may help bacteria make proteins faster
科学与环境

Evolutionary changes in key enzyme may help bacteria make proteins faster

Evolutionary changes in a key protein synthesis enzyme, isoleucyl-tRNA synthetase (IleRS), may help bacteria fine-tune how quickly proteins are made, report researchers from Institute of Science Tokyo, Japan; the University of Zagreb Faculty of Science, Croatia; and ETH Zürich, S

Phys.org - latest science and technology news stories ·