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A.S.Ganesh

Latest from A.S.Ganesh

Portrait of Tycho Brahe.

The life and times of Tycho Brahe

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AS-201 mission lifts off from Cape Canaveral, Florida on February 26, 1966.

A test flight with a number of firsts

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Views of a famous pulsating star taken nearly 90 years apart and a portrait of its galactic home are shown in this image collection.

The letter that changed the universe

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Borazon is the trade name of synthetic cubic boron nitride. It rivals diamond in hardness, and resists heat better.

Wentorf, a modern-day alchemist

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Edgar Mitchell standing by the deployed U.S. flag on the lunar surface during the early moments of the mission’s first spacewalk.

The third human landing on the moon

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DDT is still used in some countries to control mosquitoes.

The birth of the Silent Spring

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A pictorial representation of the link-up between the two crewed spacecraft Soyuz 4 and Soyuz 5. The docking was the first time human beings changed vehicles in space.

The first docking of two crewed spacecraft

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A replica of the K-model built by George Stibitz at the Computer History Museum.

The birth of the modern digital computer

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Timekeeping has evolved in many ways through human history. Coordinated Universal Time (UTC) has now been our standard for 50 years.

When UTC became the standard of time

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Astronauts Steven Smith and John Grunsfeld replaced all six gyroscopes on board the Hubble telescope during an extravehicular activity.

A servicing mission that saved Hubble

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Comet 21P/Giacobini-Zinner pictured during its most recent visit in 2018.

The first comet to encounter a spacecraft

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For 50 years, astronaut Eugene Cernan has often been referred to as the last man on the moon.

The last human expedition to the moon… so far

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An artist’s impression of Pioneer 10 taking a first close-up look at the famous “Great Red Spot” on Jupiter.

Pioneer 10’s tryst with Jupiter

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This photo from 1964 shows Centaur second-stage rocket being lowered into the vacuum tank inside the Space Power Chambers at NASA’s Lewis Research Center. The facility’s vacuum chamber, seen here, allowed the Centaur to be placed vertically and subjected to atmospheric conditions – pressures, temperature, and radiation – similar to those it would encounter in space.

A Centaur that serves as a workhorse

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