Space Exploration MCQs for Competitive Exams
Q. Who was the first human to journey into outer space? A) Neil Armstrong B) Yuri Gagarin C) Buzz Aldrin D) Alan Shepard Answer: B)
Q. Who was the first human to journey into outer space? A) Neil Armstrong B) Yuri Gagarin C) Buzz Aldrin D) Alan Shepard Answer: B)
About India-based Neutrino Observatory (INO): Location INO Peak near Theni, Tamil Nadu, India Objective Study atmospheric neutrinos and provide precise measurements of neutrino mixing parameters
An asteroid belt is a region of space within a solar system where numerous small rocky bodies, known as asteroids, orbit the sun. Asteroid belts
Viking 2 was one of two spacecraft in NASA’s Viking program, designed to explore Mars and search for evidence of past or present life. Here’s
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
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.
Determining the location of spacecraft in space relies on various methods and technologies, including: 1. Onboard Sensors and Instruments: Most spacecraft are equipped with onboard
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,
The Big Bang theory is the prevailing cosmological model for the origin and evolution of the universe. It proposes that the universe began as an
A planetary satellite, also known as a moon, is a natural celestial object that orbits a planet. Moons are gravitationally bound to their parent planets
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
The rings of Saturn are one of the most iconic features of the planet and consist of countless small particles of ice and rock orbiting
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,
A supernova is a powerful and catastrophic explosion that occurs at the end of a massive star’s life cycle. It is one of the most
Shooting stars, also known as meteors, are bright streaks of light that appear in the night sky when small particles of dust or rock, called
Stars shine and emit light and heat due to the process of nuclear fusion that occurs in their cores. Nuclear fusion is the process by
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
The Milky Way is the galaxy in which our solar system is located. It is a barred spiral galaxy, meaning it has a spiral shape
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
The Sun is primarily composed of hydrogen and helium, with smaller amounts of other elements. Here’s a breakdown of its composition: 1. Hydrogen: Hydrogen is
The Earth travels around the Sun due to the combination of its orbital motion and the gravitational force exerted by the Sun. Here’s how it
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,
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
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
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
There are two main types of fuel used to get rockets off Earth: solid and liquid. In the United States, NASA and private space agencies use
What is Newton’s Law of Universal Gravitation? Newton’s law of universal gravitation states that two bodies in space pull on each other with a force
What is a Space Station? Space stations enable us to experience and take advantage of spaceflight over long periods of time. Astronaut Chris Hadfield has describes
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
What is the Sabatier Reaction? The Sabatier reaction is a process that produces water (hydrogen and oxygen) and methane through a reaction of hydrogen with
What is Salyut 1? Salyut 1 was the world’s first space station—a predecessor to the likes of today’s International Space Station (ISS). It was built
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
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
What was the Buran Space Shuttle? The Buran space shuttle was a spaceplane developed by the Soviet Union as part of the Buran program. The
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
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
Scientists and astronomers have spent centuries performing rigorous scientific research and analysis to understand our solar system. Here are some of the significant discoveries that
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
There are eight planets namely (arranged in the order of increasing distance from the Sun) − Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune The
Every 24 hours, the Earth makes a full rotation, spinning west to east, which is why the sun rises in the east and sets in the west
For the most part, the universe is a fairly cold place. The average temperature of the universe is minus 455-degrees Fahrenheit (minus 270-degrees Celsius). Space is simply
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
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,
The universe is full of mystery. No matter how much becomes known about the cosmos, there always seems to be more that is unknown. Any time a
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
The sun is the largest, most massive object in the solar system, and it is also the primary source of light for all the planets. Everyday we feel the
When we look upon the night sky, we can see thousands of individual stars. Relative to us, the night sky seems eternal, with the stars remaining
From our everyday perspective, the Earth seems motionless. It was only a few hundred years ago that the idea of the Earth moving was seen as insane,
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,
Mars is perhaps the most studied world in our solar system other than Earth. An obvious reason for this is that Mars used to be very similar to the