Why do we find so much amber in Cretaceous rocks?

What would a traveler from the future think if one day s/he could analyze the rocks that are currently forming on the planet? Surely, this person would find quite a few plastic fragments and wonder why this material was so ...

How does the immune system react to altered gravity?

Space travel has always tested the human body by the effects of the new conditions of altered gravity on biological systems. It has long been known that continuous exposure to microgravity conditions human physiology and ...

Researchers find HERC1 protein deficiency causes osteopenia

Bones remain healthy thanks to the fact that they are continuously remodeling, a process dependent on the balance between the activity of osteoblasts—cells that create bone tissue—and the osteoclasts, which reabsorb it. ...

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