SOLAR SYSTEM

UNIVERSE

SURVEY OF THE PLANETS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When we see them in the night sky, which of the following objects are emitting their own light?
A
Mars
B
Venus
C
The Moon
D
The Sun
Explanation: 

Detailed explanation-1: -Stars are celestial bodies that emit light of their own like our Sun. The Sun, in fact, is the closest star to Earth.

Detailed explanation-2: -The objects which emit their own light are called Luminous Objects. We are able to perceive things around us thanks to the light that luminous objects release. Examples of luminous items include the sun, lit candles, blazing bulbs, and tube lights.

Detailed explanation-3: -In our solar system, the sun is the only luminous object. All of the planets and moons reflect light (the light from the sun bounces off them) and absorb light but they don’t emit light, so we say they are non-luminous. We see luminous objects because the light travels from the object to our eyes (in a straight line).

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