Following is a transcript of the video. Early in the history of our solar system, something mysteriously knocked Earth slightly off its axis. So today we tilt at 23.5 degrees. But what would ...

Earth has four seasons, but do other planets in our solar system also have hot summer days and cold winter nights?

That's why the northern and southern hemispheres get varying amounts of sunlight at different times of the year, which is why we have seasons. The recent change to Earth's axis won't affect our ...

It's a well-known fact that Earth's axis is tilted at an angle of about 23.5 degrees, which is a reason why we get to ...

Precession (21,000-year cycle): Earth wobbles on its axis, changing the timing of the seasons. These cycles interact in complex ways, sometimes reinforcing each other and at other times working ...

"The distinct transition between seasons is becoming increasingly muddled," Cradock-Henry said. Key development stages of ...

The Earth's axis is tilted at an angle. The Earth’s tilt is the reason for the changing seasons. The top half of the Earth we call the northern hemisphere, and the bottom half we call the ...

Well, according to the astronomical calendar, summer in the Northern Hemisphere officially begins on Saturday, June 21 and ...