Darkness varies depending on region (location on Earth) and Earth's position in orbit, when days grow longer when it's closer to the Sun as in the Summer.
the tilt of the Earth's rotational axis
does the moon have daytime and nightime
Antarctica should last as long as the earth lasts.
When the earth is farthest away from the sun we have winter.
Because Sirius is closer to the earth that's why it is bigger
half a billion years left. But that does not mean that PEOPLE will last that long. ;-)
As one of the seven continents on Earth, it's a pretty good guess that Antarctica will last as long as the Earth lasts.
how long do seasons last on earth
about 12 hours
Nighttime.
24 hours
24 hour