Myth: Seasons are caused by the distance of Earth from the Sun
Reality: Seasons are actually caused by the 23.45-degree tilt of the earth’s axis. This means that different parts of the earth are oriented… more
Reality: Seasons are actually caused by the 23.45-degree tilt of the earth’s axis. This means that different parts of the earth are oriented… more
Reality: The moon sometimes looks so close you could reach up and grab it. In reality, the moon orbits at a distance of about… more
The number of trees on Earth is mind-boggling, as Allisade pointed out on Reddit. NASA estimates that there are between 100 billion and 400 billion… more
For the last few billion years, the Moon’s gravity has been raising tides in Earth’s oceans which the fast spinning Earth attempts to drag ahead of the… more
It would take 1.3 million Earth to fill up the Sun. That’s a lot of Earths. The Sun makes up… more
The craft, named MESSENGER, detected an excess amount of hydrogen on Mercury’s poles, which are cool enough to sustain both liquid… more