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 ancient Mediterranean: statues, pottery, glasswar...
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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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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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The moon can appear red during a total lunar eclipse, a phenomenon that has always intrigued observers. This occurs when the Earth comes between the Sun and the Moon, blocking direct sunligh...
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It sounds like sci-fi, but it’s 100% real. In the late 1950s, during the height of the Cold War, the United States developed Project A119, a top-secret plan to detonate a nuclear bomb on the...
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Before there were alien abductions and Area 51 memes, there were the Contactees. These were people—mostly in the 1950s—who claimed not only to see UFOs, but to have had face-to-face chats wi...
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In 1969, NASA’s Apollo 11 mission made history by landing humans on the Moon. But what’s mind-blowing is the technology they used: the Apollo Guidance Computer (AGC) had a clock speed of ju...
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Apollo Guidance Computer vs. Modern Computers: What’s the Real Difference? In 1969, NASA sent astronauts to the Moon using a spacecraft controlled by a computer with less power than today...
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Was the Apollo Computer Really Powerful Enough to Go to the Moon? One of the most fascinating facts about the Apollo Moon landings is how little computing power was available at the time....
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If We Went to the Moon in 1969, Why Can’t We Go Now? It’s a fair question: if NASA sent astronauts to the Moon in 1969—over 50 years ago—why haven’t we gone back, and why does it seem so...
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