A absolute unit from ancient times.
  • CNET
  • Jan 16, 2021

Rare, nearly complete fossil reveals 'giant among Jurassic sharks' - CNET

This illustration shows what the hybodontiform shark Asteracanthus might have looked like, along with silhouettes showing the shark next to a person for scale. Sebastian Stumpf/Fabrizio De Rossi Sh… [+1700 chars]

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This photo shows two stunning light phenomena at the same time - BGR
  • BGR
  • Feb 27, 2021

Lightning strikes that we see here on the surface are only one kind of storm phenomenon, and others happen in places we can’t see from the ground.  Lightning also produces incredible sights in the space above the clouds, extending into the atmosphere in color…...

The key to proper muscle growth - Medical Xpress
  • Medical Xpress
  • Feb 27, 2021

When a muscle grows, because its owner is still growing too or has started exercising regularly, some of the stem cells in this muscle develop into new muscle cells. The same thing happens when an injured muscle starts to heal. At the same time, however, the …...

Using deep-sea fiber optic cables to detect earthquakes - Phys.org
  • Phys.Org
  • Feb 26, 2021

Seismologists at Caltech working with optics experts at Google have developed a method to use existing underwater telecommunication cables to detect earthquakes. The technique could lead to improved earthquake and tsunami warning systems around the world....