About 25 million years ago, giant rhinos more than 16 feet tall roamed the Earth.
  • CBS News
  • Jun 18, 2021

New fossils reveal one of the largest land mammals ever found — and it's a giant rhino - CBS News

About 25 million years ago, giant rhinos more than 16 feet tall roamed the Earth. They are considered the largest land mammal that ever lived — but their evolutionary history and dispersal across Asi… [+2479 chars]

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A major challenge to harvesting fusion energy on Earth - Phys.org
  • Phys.Org
  • Aug 06, 2021

A key challenge for scientists striving to produce on Earth the fusion energy that powers the sun and stars is preventing what are called runaway electrons, particles unleashed in disrupted fusion experiments that can bore holes in tokamaks, the doughnut-shap…...