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Answer: Polar Satellite Launch Vehicle
PSLV stands for Polar Satellite Launch Vehicle. It is known as the 'Workhorse of ISRO' for its ability to launch satellites into polar orbits.
Answer: True
The Sun is a G-type main-sequence star, commonly referred to as a Yellow Dwarf. It is in the middle of its life cycle, fusing hydrogen into helium.
Answer: Saturn
Saturn recently overtook Jupiter to have the most confirmed moons (over 140), surpassing Jupiter (which has over 90). This status changes occasionally with new discoveries, but Saturn currently holds the record.
Answer: August 23, 2023
Chandrayaan-3's Vikram lander successfully soft-landed near the lunar south pole on August 23, 2023, making India the fourth country to land on the Moon and the first to land near the south pole.
Answer: Aryabhata
Aryabhata was India's first satellite, launched on April 19, 1975, from the Soviet Union using a Kosmos-3M rocket. It was named after the ancient Indian mathematician Aryabhata.
Answer: True
In August 2006, the IAU redefined the criteria for a planet, and Pluto did not meet the criterion of 'clearing its neighborhood' of other objects, thus becoming a dwarf planet.
Answer: Venus
Venus is the hottest planet due to its thick atmosphere composed mainly of carbon dioxide, which creates a strong greenhouse effect, trapping heat. Mercury is closer but lacks an atmosphere to retain heat.
Answer: Mars
Mars is called the Red Planet due to the presence of iron oxide (rust) on its surface, which gives it a reddish appearance. This is a fundamental fact often asked in SSC and Railway exams.