Create a custom practice set
Pick category, difficulty, number of questions, and time limit. Start instantly with your own quiz.
Generate QuizPick category, difficulty, number of questions, and time limit. Start instantly with your own quiz.
Generate QuizNo weekly quiz is published yet. Check the weekly page for the latest updates.
View Weekly PageFree practice for SSC, UPSC, Banking & Railway exams. No login required.
Answer: 2000 km
Low Earth Orbit (LEO) is an orbit around Earth with an altitude between 160 km and 2,000 km. Most satellites, including the ISS and Hubble, operate in LEO.
Answer: True
Neil Armstrong served as the commander of the Apollo 11 mission, which landed the first humans on the Moon in 1969.
Answer: Ceres
Ceres is the largest object in the asteroid belt between Mars and Jupiter. It is so large that it is also classified as a dwarf planet.
Answer: Roscosmos
Roscosmos, the Russian state space corporation, is responsible for the Soyuz spacecraft, which has been used for decades to transport cosmonauts and astronauts to the ISS.
Answer: Synthetic Aperture Radar (SAR)
RISAT (Radar Imaging Satellite) series uses Synthetic Aperture Radar (SAR) technology, which allows imaging day and night, and through cloud cover, unlike optical satellites.
Answer: True
Betelgeuse is a red supergiant star in the constellation Orion. It is one of the largest stars visible to the naked eye and is expected to explode as a supernova in the future.
Answer: 2008
Chandrayaan-1, India's first lunar probe, was launched by ISRO in October 2008. It operated until August 2009.
Answer: Jupiter
Jupiter has the strongest magnetic field of all the planets in the Solar System, about 20,000 times stronger than Earth's.
Answer: NASA
The Space Shuttle program was operated by NASA (USA) from 1981 to 2011. It was the world's first reusable spacecraft system.
Answer: True
Geostationary satellites orbit at an altitude of approximately 35,786 km (often rounded to 36,000 km) above the Earth's equator.
Answer: Cosmic Microwave Background
The Cosmic Microwave Background (CMB) radiation is the oldest light in the universe, dating back to about 380,000 years after the Big Bang. It effectively marks the limit of the observable universe in terms of time/light.
Answer: Philae
The Philae lander, part of the ESA's Rosetta mission, became the first spacecraft to soft-land on a comet (67P/Churyumov–Gerasimenko) in November 2014.
Answer: Byalalu
The Indian Deep Space Network (IDSN) complex is located in Byalalu, near Bengaluru. It supports deep space missions like Chandrayaan and Mangalyaan.
Answer: True
Light travels at approximately 300,000 km/s in a vacuum, while sound travels at about 343 m/s in air. This is why we see lightning before we hear thunder.
Answer: Jupiter
Ganymede is the largest moon of Jupiter and the largest moon in the Solar System. It is even larger than the planet Mercury.
Answer: USA
The United States, through NASA's Apollo program, was the only country to successfully land humans on the Moon. Neil Armstrong and Buzz Aldrin were the first two.
Answer: Hydrogen
The cryogenic upper stage of GSLV uses Liquid Hydrogen (LH2) as fuel and Liquid Oxygen (LOX) as oxidizer. This combination provides high specific impulse, essential for lifting heavy payloads to geostationary orbits.
Answer: True
Nebulae are vast clouds of gas and dust in space. Some nebulae come from the gas and dust thrown out by the explosion of a dying star, while others are regions where new stars are beginning to form.
Answer: 2013
Mangalyaan was launched on November 5, 2013, and entered Mars orbit on September 24, 2014. It made India the first Asian nation to reach Mars orbit.
Answer: Venus
Venus is often called Earth's twin because it is similar in size, mass, and composition to Earth. However, its atmospheric conditions are vastly different.