Michael’s Miscellany: 10 More Cool Things About the Sun Astronomy for beginners, Observing, The Moon ...
The Moon reaches apogee, the farthest point from Earth in its orbit, at 5:46 A.M. EDT. At that time, our satellite will stand 251,996 miles (405,548 km) away. With the Moon sinking low in the hours ...
Use the Big Dipper to locate Polaris, the North Star. Orion's belt helps find other bright stars like Sirius. Follow the Big Dipper's handle to find Arcturus and Spica. The Summer Triangle is formed ...
The world’s best-selling astronomy magazine offers you the most exciting, visually stunning, and timely coverage of the heavens above. Each issue includes expert science reporting, vivid color ...
Whether you’re looking for a new telescope, eyepiece, binoculars, or anything else you need to up your observing game, we’ve got you covered.
The origin of Earth's water is a long-standing scientific question, with differing isotopic ratios of deuterium to hydrogen (D/H) in Earth's oceans compared to the early solar system suggesting ...
On Oct. 1, 1847, Maria Mitchell was positioned on the roof of the Pacific National Bank on Main Street in her hometown of Nantucket, Massachusetts. Sweeping the sky with her family’s 2-inch reflector, ...
The speed of light is a fundamental constant, approximately 299,792,458 meters per second. It's the same for all observers and hasn't changed measurably over billions of years. Nothing can travel ...
I wanted to share the above image with you to demonstrate how prevalent satellite trails are becoming in astroimages. I received it from John Chumack, a longtime contributor to Astronomy magazine. He ...
Karl Schwarzschild's 1916 solution to Einstein's field equations of general relativity predicted the existence of black holes, characterized by an event horizon where even light cannot escape. Cygnus ...
Twice, long ago, Earth was completely covered in ice. This "Snowball Earth" may have led to more complex life. Glacial deposits and limestone layers support the Snowball theory. Large volcanic ...
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