While watching the four Galilean moons of Jupiter buzzing around the planet recently, I was reminded of the historical role they have played in the advancement of science over the last 400 years. Starting with their discovery by Galileo in 1610, their existence helped prove that the sun was the center of the solar system not the earth.
Sundials are an historic reminder of how man used to measure the time of day and are frequently used to inspire us about how time
Christian Doppler (1803 – 1853) was an Austrian mathematician and physicist who is known for his principle, known as the Doppler Effect, that the
An interesting visual and telescopic challenge for viewing this spring is binary stars. Most stars in our galaxy come in pairs or even triples. Our
While the five naked eye planets (Mercury, Venus, Mars, Jupiter and Saturn) are only visible in the late evening and early morning hours, Uranus and
Eyepiece, the Amateur Astronomers Association monthly newsletter, covers lectures and other astronomy events in New York City; offers commentary, tips on observing and equipment and summarizes astronomy discoveries and other general news in astronomy and astrophysics. Each month, our “What’s Up in the Sky” column discusses what can be seen in the skies during the upcoming month. Members do all the writing for Eyepiece, and new contributors are always welcome. Submit today!
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