“The Knowledge Library”

Knowledge for All, without Barriers…

An Initiative by: Kausik Chakraborty.

“The Knowledge Library”

Knowledge for All, without Barriers……….
An Initiative by: Kausik Chakraborty.

The Knowledge Library

Astronomy

SPACE SUITS

Space suits, also known as extravehicular mobility units (EMUs) or spacewalk suits, are specially designed garments worn by astronauts during extravehicular activities (EVAs) outside of

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ARTEMIS MISSION

The Artemis program is a NASA-led initiative aimed at returning humans to the Moon to establish sustainable lunar exploration by the end of the 2020s.

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WHAT IS THE UNIVERSE?

The universe is the vast expanse of space and all the matter, energy, and phenomena within it. It encompasses everything that exists, including galaxies, stars,

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WHAT MAKES NEPTUNE BLUE?

Neptune appears blue due to the presence of methane in its atmosphere. Here’s how it works: 1. **Methane Absorption**: Neptune’s atmosphere contains methane, a gas

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WHAT IS A NEBULA?

A nebula is a vast cloud of gas and dust in space, primarily composed of hydrogen, helium, and other elements. Nebulae come in various shapes,

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WHAT ARE STARS?

Stars are massive celestial bodies composed primarily of hydrogen and helium gas that generate light and heat through nuclear fusion reactions in their cores. They

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WHAT ARE SUN SPOTS?

Sunspots are temporary phenomena on the Sun’s surface that appear as dark, cooler regions compared to their surrounding areas. They are caused by magnetic activity

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Perseid Meteor Shower

Origin of Phenomenon: The Perseid meteor shower originates from Earth’s passage through debris consisting of ice, rock, and dust, shed by Comet Swift-Tuttle. Orbital details: This comet,

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Voyager Mission

Originally planned to explore the five outer planets (Mars, Jupiter, Saturn, Uranus, and Neptune) with four complex spacecraft, NASA changed its approach due to budget

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Rocket Staging

What is Rocket Staging? Staging is the combination of several rocket sections, or stages, that fire in a specific order and then detach, so a

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Hohmann Transfer

What is the Hohmann Transfer? The Hohmann transfer is a system of firing rockets that physicists use to move a spacecraft into a different altitude

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Orbital Velocity

What is Orbital Velocity? Orbital velocity is the speed required to achieve orbit around a celestial body, such as a planet or a star. This

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Gemini Spacecraft

What was the Gemini Spacecraft? The Gemini (also called the Gemini capsule or the Gemini spacecraft) was a conical, manned spacecraft for two astronauts used

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Lunar Lander

What is a Lunar Lander? A lunar lander is a type of spacecraft designed to land on the surface of the moon. It’s also known

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Space Shuttle

What is the History of Space Shuttle Launches? The space shuttle was developed by NASA as a partially reusable low Earth orbital spacecraft. The NASA

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European Space Agency

What is the European Space Agency? The European Space Agency (or ESA) is an intergovernmental organization that oversees space science and exploration. The ESA comprises

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NASA

What is NASA? NASA is the commonly used acronym for the National Aeronautics and Space Administration. It is a federal agency that oversees government initiatives

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Solar System

There are eight planets namely (arranged in the order of increasing distance from the Sun) − Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune The

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What is the Heliopause?

The sun is constantly emitting a beam of charged particles called the solar wind. As one might expect, the strength of the solar wind weakens with distance. The

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What are the Planets Made of?

Our solar system is home to eight different planets that are classified into three different types: rocky planets, gas giants, and ice giants. The four inner planets, Mercury, Venus,

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How Old is The Sun?

The sun formed around 4.6-billion years ago, and all the planets formed within the next 100-million years. The age of the sun and the planets

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Why Are Planets Round?

Every single planet in the universe is round. Not every planet in the universe has been discovered, yet in order for an object to be defined as a planet,

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