observation

Tsunamis’ Magnetic Fields Can Be Detected Before Sea Levels Change

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Seconds count when it comes to tsunami alerts, and scientists may have found a warning sign that can be detected even earlier than sea level rises: the magnetic fields created by these gigantic rushes of waves.   Even though the difference might only be a minute or two, that can save lives. Magnetic field data … Read more

Scientists Observed This Ghostly Galaxy For 40 Hours And Couldn’t Find Any Dark Matter

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A new discovery has deepened the mystery of galaxies without dark matter. In a galaxy named AGC 114905, 250 million light-years away, astronomers could find no trace of the mysterious stuff, even after 40 hours of detailed observation and subsequent analysis.   The result, to be published in the Monthly Notices of the Royal Astronomical … Read more