Death Eater Nebula
Astronomy Lists

The Spookiest Nebulae in the Universe

Nebulae are among the most beautiful, complex, and least understood objects in the entire Universe, with how we perceive them often depending upon our skill in manipulating photographic images, rather than our observation skills. Once …
Few star size comparisons
Astronomy Lists

10 Most Extreme Stars in the Universe

Our Sun is often described as an “average yellow dwarf star,” but there is enormous variety among stars. Their masses, temperatures, luminosities, sizes and ages can differ by extraordinary amounts, producing objects that push the …
Orion
Astronomy Lists

Top Deep-Sky Objects in Orion

Orion is one of the oldest recognized constellations and contains two of the brightest stars in the sky, Rigel and Betelgeuse. Since it is visible from both hemispheres, the Orion constellation has also featured prominently …
Giant-impact Hypothesis
Astronomy Lists

Top Theories on How the Moon Formed

The Moon has been a constant source of wonder and fascination throughout mankind’s’ history, but despite being located a mere 238,900 miles or 1.28 light-seconds away, we know less about it and how it came …
Rocky surface of Venus photographed by a Soviet Venera lander
Astronomy Lists

10 Fun Facts About Venus

Venus may appear as a brilliant, peaceful point of light in Earth’s sky, but beneath its reflective clouds lies a world of crushing pressure, extreme heat and unusual geology. From an atmosphere that races around …
Raphael's School of Athens showing ancient Greek philosophers
Astronomy History

10 Top Astronomers from the Ancient World

From the western historical perspective, it is sometimes easy to focus on the astronomical works of early Greek astronomers too tightly, while overlooking the worthy contributions made by earlier philosophers from other cultures that have …