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mercury
‘Potent Neurotoxin’ Thimerosal Is Still Used in Some Flu Vaccines, Scientist Says
Removal of mercury from U.S. vaccines was recommended over two decades ago, yet some flu vaccines contain up to 25 micrograms of thimerosal.
Where to Watch Mercury’s Transit Between the Sun and Earth: NASA
The rare passing only occurs about 13 times a century, with the last trip taking place in 2006.
The Planet Mercury Once Had a Graphite Surface
Mercury, the small planet that’s closest to the sun, may have once had a surface made of graphite, the material used in making pencil lead.
