Has the world ever frozen over?
2024-06-05 13:16 There is a hypothesis that the Earth at one or several points would have been entirely covered by ice.  This is called Snowball Earth and is a controversial idea.  All the suggested points have their own problems.
Icehouse Earth and ice ages
2024-05-31 13:02 The climate during the last 550 million years is rather well-documented.  There have been several periods of tens of millions of years without any ice sheets.  The greenhouse effect was then considerably stronger than it is today.
On varying clouds
2024-05-28 13:37 Clouds can look rather differently, which too many grow up without any awareness of.  I have read about people suddenly discovering there is more than one kind of cloud.
What global warming means
2024-05-22 13:19 Climate change means a shifting in statistical averages.  In the case of global warming this means a shift to the warmer.  Mostly this affects areas situated closer to the poles.
Climate and seasons
2024-05-17 12:46 Climate is the average weather pattern for a place or an area.  Usually, it is the average for a period of 30 years.  Far too many mistake this for how the weather is for the moment.
Myths on snow
2024-05-10 12:15 In areas were snow is rare there are of lot of misconceptions about it.  They are probably even worse in areas where it has not snowed for generations.  Of cause everyone reading this knows what snow is.
On the movements of the Sun
2024-05-02 12:57 There are people taking it for granted they already know how the Sun moves.  The trouble with this is what they think they know is false.
On the movements of the Moon
2024-04-26 12:33 A great deal of people seem to believe the Moon is only up at night.  I think it is because the crescent is used as a symbol for night-time.  Neither do they spend much attention at what one can see in the sky.
Distances in space
2024-04-24 12:31 It can be hard to grasp exactly how empty space is.  The astronomer David Morrison once got the question:
The myth of the arbitrary movements of the heavenly bodies
2024-04-18 12:49 Many seem to lack basic knowledge on the movements of the heavenly bodies.  This applies to things like the following: