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When the replacement crew for Skylab entered the empty space station, they found that it wasn’t empty at all: 3 figures were inside. Upon further inspection, the replacement crew found out that these were dummies placed in flight suits by the previous Skylab crew before they left.

Astronomy, Engineering & Technology, Space Technology /

Skylab 4 Skylab 4 (also SL-4 and SLM-3) was the third crewed Skylab mission and placed the third and final crew aboard the first American space station. The mission started on November 16, 1973 with the launch of three astronauts on an Apollo command and service module on a Saturn IB rocket from the Kennedy […]

When the replacement crew for Skylab entered the empty space station, they found that it wasn’t empty at all: 3 figures were inside. Upon further inspection, the replacement crew found out that these were dummies placed in flight suits by the previous Skylab crew before they left. Read More »

The common method for a spacecraft to shift between two orbits is called a Hohmann Transfer, and that the guy who calculated it (in 1925) was inspired by a science fiction book written in 1897, which gave a generally correct explanation of the concept of orbit trajectory

Astronomy, Engineering & Technology, Space Technology /

Hohmann transfer orbit Hohmann transfer orbit, labelled 2, from an orbit (1) to a higher orbit (3) An example of a Hohmann transfer orbit between Earth and Mars, as used by the NASA InSight probe. Hohman · Earth · Mars In orbital mechanics, the Hohmann transfer orbit (/ˈhoʊmən/) is an elliptical orbit used to transfer

The common method for a spacecraft to shift between two orbits is called a Hohmann Transfer, and that the guy who calculated it (in 1925) was inspired by a science fiction book written in 1897, which gave a generally correct explanation of the concept of orbit trajectory Read More »

The Sweden Solar System is the world’s largest scale model of the Solar System at a scale of 1:20 million. In Sweden, the Sun is represented by the Globe Arena in Stockholm which is the largest spherical building in the world and the planets are located in different locations of Sweden.

Astronomy, Business & Industrial /

Sweden Solar System The Sweden Solar System is the world’s largest model of our planetary system, at a scale of 1:20 million. The sun is represented by the Globe Arena in Stockholm, the largest spherical building in the world. The planets, all appropriately scaled, are all around Stockholm and its suburbs. Jupiter (diameter 7.3 m)

The Sweden Solar System is the world’s largest scale model of the Solar System at a scale of 1:20 million. In Sweden, the Sun is represented by the Globe Arena in Stockholm which is the largest spherical building in the world and the planets are located in different locations of Sweden. Read More »

After landing on the moon during Apollo 11, Buzz Aldrin accidentally damaged the circuit breaker that would arm the ascent engine that would get them off the moon. The astronauts activated the engine by triggering the circuit with a felt-tipped pen.

Astronomy, Engineering & Technology, Space Technology /

Apollo 11 This article is about the 1969 crewed lunar mission. For other uses, see Apollo 11 (disambiguation). Apollo 11 was the spaceflight that first landed humans on the Moon. Commander Neil Armstrong and lunar module pilot Buzz Aldrin formed the American crew that landed the Apollo Lunar Module Eagle on July 20, 1969, at

After landing on the moon during Apollo 11, Buzz Aldrin accidentally damaged the circuit breaker that would arm the ascent engine that would get them off the moon. The astronauts activated the engine by triggering the circuit with a felt-tipped pen. Read More »

Astronomer Harlow Shapley firmly believed that there was only one galaxy in the universe but when he was presented with an evidence that disproved his view, he said “it destroyed his universe.” Then he completely changed his view and devoted his subsequent career in mapping 76,000 galaxies.

Astronomy /

Harlow Shapley Harlow Shapley (November 2, 1885 – October 20, 1972) was an American scientist, head of the Harvard College Observatory (1921–1952), and political activist during the latter New Deal and Fair Deal. Shapley used Cepheid variable stars to estimate the size of the Milky Way Galaxy and the Sun’s position within it by using

Astronomer Harlow Shapley firmly believed that there was only one galaxy in the universe but when he was presented with an evidence that disproved his view, he said “it destroyed his universe.” Then he completely changed his view and devoted his subsequent career in mapping 76,000 galaxies. Read More »

Not long after Julius Caesar was assassinated, a comet shone for seven successive days. This signified Julius Caesar’s ascension to Godhood, and propaganda for Caesar’s nephew. The comet was described as: “To make that soul a star that burns forever, Above the Forum and the gates of Rome.”

Astronomy /

Caesar’s Comet Caesar’s Comet (also Sidus Iulium (“Julian Star”); Caesaris astrum (“Star of Caesar”); Comet Caesar; the Great Comet of 44 BC; numerical designation C/-43 K1) was a seven-day cometary outburst seen in July 44 BC. It was interpreted by Romans as a sign of the deification of recently assassinated dictator, Julius Caesar (100–44 BC).

Not long after Julius Caesar was assassinated, a comet shone for seven successive days. This signified Julius Caesar’s ascension to Godhood, and propaganda for Caesar’s nephew. The comet was described as: “To make that soul a star that burns forever, Above the Forum and the gates of Rome.” Read More »

If funding remained at 1969 Apollo mission levels, NASA planned to develop such elements as a lunar orbit station in 1978, a lunar surface base in 1980, and a manned mission to Mars in 1981 or 1983

Astronomy, Engineering & Technology, Space Technology /

Just another Apollo? Part two In mid-1969, as the Apollo missions were reaching their climax, NASA managers began to plan for the next phase of lunar exploration. This optimistic plan, issued by the Space Task Group, would have had NASA’s funding stay at Apollo levels, and, in a series of steps that followed Apollo, would

If funding remained at 1969 Apollo mission levels, NASA planned to develop such elements as a lunar orbit station in 1978, a lunar surface base in 1980, and a manned mission to Mars in 1981 or 1983 Read More »

The speed of light was first estimated in 1676 by a Danish Astronomer who was timing the eclipses of Io caused by Jupiter. He noticed the period between eclipses increased with Earth’s distance from Jupiter and guessed it was because light had to travel a longer distance.

Astronomy /

Rømer’s determination of the speed of light Ole Rømer (1644–1710) was already a statesman in his native Denmark some time after his discovery of the speed of light (1676). The engraving is probably posthumous. Rømer’s determination of the speed of light was the demonstration in 1676 that light has a finite speed and so does

The speed of light was first estimated in 1676 by a Danish Astronomer who was timing the eclipses of Io caused by Jupiter. He noticed the period between eclipses increased with Earth’s distance from Jupiter and guessed it was because light had to travel a longer distance. Read More »

Meet the joke behind NASA’s Juno mission. While Jupiter’s moons are named after the god’s many mistresses, Juno, the space probe sent to orbit and monitor Jupiter, is named after his wife.

Astronomy /

Kepler laid the groundwork for this amazing science joke 400 years ago — and it finally paid off Wikimedia Commons Even in the space age, a little knowledge of the classics comes in handy sometimes. If you’re a fan of Greco-Roman mythology and NASA, you may have noticed that the space probe now orbiting Jupiter

Meet the joke behind NASA’s Juno mission. While Jupiter’s moons are named after the god’s many mistresses, Juno, the space probe sent to orbit and monitor Jupiter, is named after his wife. Read More »

Jupiter’s Great Red Spot is so loud, it’s acoustic sound waves heat up the surrounding atmosphere to almost 2400 degrees Fahrenheit

Astronomy /

When the NASA probe Pioneer 10 passed by Jupiter in 1973, it sent scientists back some puzzling readings taken from the planet’s upper atmosphere. Until then, most planetary researchers believed that Jupiter’s upper reaches would be pretty cold, considering how far the gas giant is from the sun’s warming rays. And Jupiter isn’t the only

Jupiter’s Great Red Spot is so loud, it’s acoustic sound waves heat up the surrounding atmosphere to almost 2400 degrees Fahrenheit Read More »

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