orbits

January 5, 2020
Aphelion versus perihelion. (orbits exaggerated). Image credit: NOAA/NASA.

Happy Perihelion 2020!

All of us on Earth and in orbit reached our closest point to the Sun, January 5 at 2:48 EST or 7:48 Universal Time (UT). This point of closest approach to the Sun is called perihelion. The point when Earth
August 10, 2014

Super Supermoon Sunday!

Today’s full moon is the year’s closest supermoon. Today’s full moon is the year’s closest supermoon. A supermoon is when a full moon or a new moon is coincident with the closest approach (called perigee) of the Moon to Earth.