Early telescopes were all refracting telescopes of the kind Galileo made. While they revolutionized the science of astronomy, they had some innate downsides. The act of refraction also causes ...

The Midwest, Mid-Atlantic and even the deep South could be in for an aurora borealis treat Sunday night. A strong geomagnetic ...

Your best bet to see the northern lights is to get away from the city and light pollution. The farther north you go, the more ...

For thousands of years we assumed the earth was the center of the universe. When Galileo advanced the proposition that the ...

In the late 1500s, Florentine astronomer, physicist, and engineer Galileo Galilei theorized that mass does not affect gravitational pull, contradicting Aristotle. Galilei believed that all things fall ...

The telescope and its magnifying power changed astronomy forever. Galileo's telescope allowed him to magnify the planets, just points of light to the unaided eye, into bright discs covered in ...