In fact, contrary to the popular belief, the lengths of day and night aren’t equal on an equinox. There’s another term for this: equilux.
Category Archives: Earth Facts
How high do you have to be to see the curvature of the Earth?
Most people don’t realize how large the earth is compared to the height of a mountain or the altitude of a passenger aircraft. It’s easy to think we’re really high up when we are atop a high mountain or in a passenger plane, but comparatively, even in the case of the plane (planes fly higher …
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10 Fun Geography Facts
Earth is an amazing place. Not only it is a beautiful oasis in the vast, cold space, it also has many interesting features. Here are 10 fun geography facts.
Earth’s magnetic field is changing 10 times faster than previously thought
The magnetic field of Earth is constantly changing. And, at the moment, even more rapidly than previously thought – up to 10 times, as British researchers have now figured out. This has significant implications not just for the old-school magnetic compass navigation but also for the proper functioning of telecommunications networks and GPS-and thus for …
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How LONG is the Earth? The answer may surprise you
“How long is the Earth” is a weird question – but what if you cut it up into Minecraft sized 1-meter cubes and lay them in a line through space, how far would the Earth stretch? It is a thought experiment and in the video published by the astrophysicist (and a famous poker player!) Liv …
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How the moon was formed? An epic exploration of lunar origin theories
How the moon was formed? The most widely accepted theory of the Moon’s origin is known as the Giant Impact Hypothesis. The standard giant impact hypothesis, sometimes called the Big Splash, or the Theia Impact suggests the Mars-sized body, called Theia, impacted Earth, creating a large debris ring around Earth, and the Moon formed out …
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The Sun is less active than sibling stars, study shows – here’s what that could mean
Andrew Norton, The Open University All stars emit varying amounts of light over time – and the Sun is no exception. Such changes in starlight can help us understand how habitable any planets around other stars are – a very active star may bombard its planets with harmful radiation. Now a new study, published in …
Why the night sky is dark?
Roger Barlow, University of Huddersfield Why the night sky is dark? It sounds obvious. That’s what night is. The sun has set and when you look up at the sky, it’s black. Except where there’s a star, of course. The stars are bright and shiny.
This is why light pollution in cities is a very bad thing
Do you remember when did you see a sky full of stars last? It’s been many years for me, I even can’t remember when I saw last. A lot of young people didn’t see even once, because of the light pollution in cities, since they were born in cities and probably never went to the …
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This is why we have Leap Years
Once (almost) every four years, we have a “leap year” which has 366 days instead of 365. Why it is like that? Why we have leap years? JAXA (Former NASA Goddard) Planetary scientist Dr. James O’Donoghue (@physicsJ) explains why we have leap years in his latest video.
