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At Least 6 Dead in Poland After Gunman Opens Fire in Krakow, Police Say

来源: NYT > World News · 发布于

At Least 6 Dead in Poland After Gunman Opens Fire in Krakow, Police Say
来源: NYT > World News

The authorities said that the gunman, who began shooting from a car near a market square, was shot and taken to a hospital.

The authorities said that the gunman, who began shooting from a car near a market square, was shot and taken to a hospital.

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Dead stars could break one of physics' most famous limits
科学与环境

Dead stars could break one of physics' most famous limits

A surprising new discovery suggests that some dead stars can grow far more massive than scientists once thought possible. Computer simulations show that powerful magnetic fields could allow white dwarfs to reach 2.4 times the mass of the Sun, dramatically exceeding a famous limit

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