Perihelion, or when the earth is closest to the sun remains elusive to most people. It is a basic fact, but not common knowledge. Not even a casual factoid on the nightly weather report. There is no holiday that commemorates that day. .
Proxima Centauri is the closest star to this solar system. A couple of years ago,a team discoveredthat there is aplanet – called Proxima b – orbiting the star. It’s just a little bit bigger than Earth,it’s probably rockyand it is in what is called the habitab...