RT @Astroguyz: The Earth reaches perihelion tomorrow at ~8UT/3EST… you can see the size difference viewing the Sun: http://t.co/ACg0gHi8zs
RT @Astroguyz: The Earth reaches perihelion tomorrow at ~8UT/3EST… you can see the size difference viewing the Sun: http://t.co/ACg0gHi8zs