GENERAL KNOWLEDGE

GK

THE UNIVERSE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Venus appears very bright in the night sky because it ____
A
is the largest planet.
B
is the closest planet to Earth.
C
has a gravitational field.
D
has a high surface temperature.
Explanation: 

Detailed explanation-1: -Venus is so bright because its thick clouds reflect most of the sunlight that reaches it (about 70%) back into space, and because it is the closest planet to Earth. Venus can often be seen within a few hours after sunset or before sunrise as the brightest object in the sky (other than the moon).

Detailed explanation-2: -Venus is the closest planet to Earth (it’s also the most similar in size). But its proximity to our planet depends on the orbits of both. The two planets travel in ellipses around the sun, and so the distance between them is constantly shifting.

Detailed explanation-3: -Venus is brightest at what’s called greatest illuminated extent, or greatest brilliancy. It happens when Venus is relatively near Earth, and when telescopes show it in a crescent phase, like a tiny crescent moon. At such times, you can see Venus in the daytime.

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