Add Yahoo as a preferred source to see more of our stories on Google. January is the month of Janus, the two-faced Roman god, and, in a timely harbinger for the new year, a pet owner in Nigeria has ...

January, named for that two-faced Roman god, brings us into a midterm election year. And Janus makes a good emblem for these biennial contests, which are full of double meaning. For the broad ...

Bacteria (gray) exhibit resistance to antibiotics (green spheres). However, when Janus nanoparticles (orange/gray spheres) are added, the antibiotics penetrate into the bacteria (red), leading to ...

The two-faced white dwarf, nicknamed Janus. This star remnant is composed primarily of hydrogen on one side (brighter blue) and helium on the other. Artist’s representation.