Mars

Before we go further and send humans to Mars, we need to know if doing so could trigger the extinction of existing life on the planet, writes Professor of Astronomy David Weintraub. Read More

Don’t forget to look around the sky during the historic total solar eclipse. Vanderbilt Dyer Observatory astronomer Billy Teets says several planets will be brightly visible as the solar eclipse occurs. Venus will be the brightest thing in the sky, besides the sun and the moon. Tests tells where to… Read More

Clinical pharmacologist Jens Titze, M.D., and colleagues have discovered that – in contrast to the prevailing dogma – human sodium levels fluctuate rhythmically with 7-day and monthly cycles. Read More