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What is the largest object in the asteroid belt?
- Vesta
- Pallas
- Ceres
- Hygiea
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.
Which space agency is responsible for the Soyuz spacecraft?
- NASA
- Roscosmos
- ESA
- CNSA
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.
Chandrayaan-1 was launched in which year?
- 2006
- 2008
- 2010
- 2012
Answer: 2008
Chandrayaan-1, India's first lunar probe, was launched by ISRO in October 2008. It operated until August 2009.
Which planet has the strongest magnetic field in the solar system?
- Earth
- Jupiter
- Saturn
- Uranus
Answer: Jupiter
Jupiter has the strongest magnetic field of all the planets in the Solar System, about 20,000 times stronger than Earth's.
What is the name of the theoretical boundary of the observable universe?
- Event Horizon
- Cosmic Microwave Background
- Heliopause
- Kuiper Belt
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.
Which mission was the first to land a spacecraft on a comet?
- Rosetta
- Philae
- Hayabusa
- OSIRIS-REx
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.
Ganymede, the largest moon in the solar system, orbits which planet?
- Saturn
- Jupiter
- Uranus
- Neptune
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.
Which country was the first to send a human to the Moon?
- Soviet Union
- USA
- China
- India
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.
In which year was India's Mars Orbiter Mission (Mangalyaan) launched?
- 2011
- 2013
- 2015
- 2017
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.
Which planet is often referred to as Earth's 'twin' due to its similar size and mass?
- Mars
- Venus
- Mercury
- Jupiter
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.
Which constellation is also known as the 'Great Bear'?
- Ursa Major
- Ursa Minor
- Orion
- Cassiopeia
Answer: Ursa Major
Ursa Major is known as the Great Bear. It contains the asterism known as the Big Dipper or the Plough, which is used to locate the Pole Star.
What was the name of the rover deployed by Chandrayaan-3?
- Pragyan
- Vikram
- Gaganyaan
- Aditya
Answer: Pragyan
The Chandrayaan-3 mission consisted of the Vikram lander and the Pragyan rover. Pragyan means 'wisdom' in Sanskrit.
What is the primary function of the Cartosat series of satellites?
- Communication
- Earth Observation and Mapping
- Weather Forecasting
- Navigation
Answer: Earth Observation and Mapping
Cartosat satellites are part of the Indian Remote Sensing (IRS) program, designed for high-resolution earth observation and cartographic applications.
Which planet is tilted on its side, rotating almost perpendicular to its orbit?
- Jupiter
- Saturn
- Uranus
- Neptune
Answer: Uranus
Uranus has an axial tilt of about 98 degrees, meaning it essentially rolls around the Sun on its side. This extreme tilt causes extreme seasonal variations.
Which international space station is a collaborative project involving NASA, Roscosmos, JAXA, ESA, and CSA?
- Tiangong
- Mir
- International Space Station (ISS)
- Skylab
Answer: International Space Station (ISS)
The ISS is a modular space station in low Earth orbit, maintained by a collaboration of five space agencies: NASA (USA), Roscosmos (Russia), JAXA (Japan), ESA (Europe), and CSA (Canada).
What is the name of the supermassive black hole at the center of our Milky Way galaxy?
- Cygnus X-1
- Sagittarius A*
- M87*
- Andromeda Black Hole
Answer: Sagittarius A*
Sagittarius A* (Sgr A*) is the supermassive black hole at the Galactic Center of the Milky Way. The first image of Sgr A* was released by the Event Horizon Telescope in 2022.
Which planet is closest to the Sun?
- Venus
- Earth
- Mercury
- Mars
Answer: Mercury
Mercury is the smallest and innermost planet in the Solar System, orbiting closest to the Sun.
Which space agency launched the Kepler Space Telescope to discover exoplanets?
- ESA
- NASA
- JAXA
- Roscosmos
Answer: NASA
NASA launched the Kepler Space Telescope in 2009. Its primary mission was to discover Earth-size planets orbiting other stars, particularly in the habitable zone.
Which instrument on Chandrayaan-1 discovered water molecules on the Moon?
- TMC
- MIP
- Moon Mineralogy Mapper (M3)
- Hex
Answer: Moon Mineralogy Mapper (M3)
The Moon Mineralogy Mapper (M3), an instrument provided by NASA on board Chandrayaan-1, confirmed the presence of water molecules on the lunar surface in 2009.
Which planet has the shortest day (rotation period) in the solar system?
- Earth
- Mars
- Jupiter
- Saturn
Answer: Jupiter
Jupiter has the shortest day of all the planets, rotating on its axis once every 9 hours and 55 minutes. Its rapid rotation causes it to bulge at the equator.