Mercury’s high density has been a longstanding puzzle in planetary science. Its density means that it must have a significantly higher iron abundance than Venus, Earth, Mars, or the asteroids, probably in the form of a large iron core. NASA’s MESSENGER mission has challenged many of the hypothesized ways to create an iron-rich Mercury; a new hypothesis is required.
Follow us on Twitter
Like us on Facebook
More Posts About
AGN astrophysics binary stars radio astronomy exoplanets solar system stars transits observations instrumentation theory stellar evolution black holes galaxy evolution star formation astronomical methods accretion galaxies Kepler supernovae habitability dark matter statistics simulations spectroscopy planetary science planet formation cosmology astronomy protoplanetary disks