Astronomy Fact of the Day: February 15, 2019

On this date in 1564, astronomer Galileo Galilei was born. He studied sunspots and observed the four largest moons of Jupiter, which are now known as the Galilean moons. Learn more about Galileo Galilei. Image Credit: Justus Sustermans – Portrait of Galileo Galilei, 1636

Astronomy Fact of the Day: February 12, 2019

First quarter moon occurs tonight. Once the sun sets, the moon will appear in the southern sky. If you have binoculars scan along the line that separates day and night on the moon. Here you will see the best lunar details. Learn about the lunar phases.

Astronomy Fact of the Day: February 9, 2019

Planets that orbit stars other than the sun are called exoplanets. NASA lists 3,890 confirmed exoplanets. Are you interested in exoplanets? Look into the NASA missions Kepler and TESS. Learn more about exoplanets.

Astronomy Fact of the Day: February 8, 2019

The first confirmed discovery of a planet orbiting a main sequence star occurred in 1995. The star is named 51 Pegasi and the planet was cataloged 51 Pegasi b. Eventually the planet was named Dimidium. Learn more about Diumidium / 51 Pegasi b. Image Credit: ESO/M. Kornmesser/Nick Risinger (