The Solar system consists of how many planets
Which of the following celestial bodies are non-luminous in nature?
An interstellar cloud of dust, hydrogen, helium, and other gases is termed as:
The Milky Way Galaxy is:
The Gaseous Hypothesis was proposed by:
A giant cigar-shaped mass called a filament- thick in the centre and thin and sharp at the ends was formed according to which of the following Hypothesis:
The concept of the earth and the moon forming a single rapidly rotating body to form the moon was given by:
The Collision Hypothesis proposed by Harold Jeffreys, involved the collision and movement of how many celestial bodies.
“Everything in the universe developed from a point known as singularity” was proposed in
The inner planets lie between the:
The rotatory motion of all the planets is in the same direction as their revolution around the sun except for:
It was suggested that the material forming the moon was separated from the depression occupied by:
Which of the following is a "periodic" comet and returns to Earth's vicinity about every 75 years?
Some rocky fragments that endure passage through the atmosphere of Earth & hit the ground are known as:
When the moon is more than half lit but not full, the phase is called as: