Imagine putting the entire Solar System on a cosmic scale: the eight planets, every known moon, the asteroids, comets, dwarf planets, dust and the enormous Sun. The result would be absurdly one-sided. Roughly 99.86% of the mass would sit on...
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At this moment, Earth is moving in several different ways at once. It spins on its axis, circles the Sun at roughly 30 kilometers per second, and accompanies the entire Solar System on a vas...
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In 1901, divers working an ancient shipwreck near the Greek island of Antikythera recovered statues, ceramics, glass and a badly corroded mass of bronze. The wreck had carried valuable cargo...
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When sponge divers found an ancient shipwreck off the small Greek island of Antikythera around 1900, they brought up the kinds of objects archaeologists expected from a wealthy vessel of the...
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From the ground, Earth is almost too large to understand. Nations fill maps. Mountain ranges divide regions. Oceans separate continents. Political borders seem concrete because they organize...
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Listen to some of NASA's most famous recordings from the outer Solar System and space does not sound silent at all. Jupiter whistles, crackles and roars. Saturn produces eerie rising tones....
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An old tree can carry the shape of an injury long after the branch that caused it has disappeared. A swollen collar may surround the site of a lost limb. Growth rings can bend around the old...
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Astronomy has a reputation for expensive telescopes, complicated star charts and distant objects visible only through professional instruments. Yet some of the sky's most memorable events re...
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"Okay, so I know spring is supposed to be all flowers and sunshine, but why is the weather so crazy? One day it's warm, the next it's freezing! What's the deal with spring weather?" That'...
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The Earth is one of the oldest planets in our solar system, but how old exactly is it? This comprehensive guide will explore the evidence and theories that have led scientists to estimate th...
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