The universe is formed by the expansion of primordial condition. This primordial condition expanded because of.
magnetic field
nuclear reaction
violent explosion
thermal expansion
Proxima Centauri is at a distance of.......light years from the earth.
4.5
4.2
4.6
none of these
A njattuvela is approximately ......days.
10 - 11
12 - 13
13 - 14
Sun has nine planets . Which is the largest among all of them ?
Neptune
Jupiter
Earth
Saturn
Stars are formed in
Ceres
Nebula
Andromeda
None of these
Age of the Sun is
4.65 billion years
5.20 billion years
4.40 billion years
4.25 billion years
The central part at which numerous stars are concentrated is called
Supernova
Perihelion
Galactic bulge
Apastron
Two stars of different galaxies in the universe move away from each other. Sometimes, two stars of different galaxies may move towards each other in course of time.Which of the following inferences can be drawn from the observation?
Stars repel each other.
Stars attract each other.
Galaxies are expanding.
Galaxies are contracting.
The small celestial objects, known as meteors, burn out as they enter the Earth’s atmosphere.The meteors heat up on entering the earth’s atmosphere because of
rotation of the Earth
magnetic field of the Earth
friction between the meteors and Earth’s atmosphere
gravitational attraction between the meteors and the Earth
According to Big Bang theory, all the celestial objects existed at a certain point which is
expanding into the present day universe
contracting into the present day universe
located in the middle of the Milky Way
located in the middle of the Solar System
