What is the size of Earth? How big our planet is compared to our planets, and even stars? When it comes to big numbers, very big numbers, human brain is weak. In fact, our brains cannot deal with the really large numbers. That’s why when the subject is Earth, planets, Solar System, galaxies, and in general, the Universe, we cannot truly conceptualize the things. A lot of people think we’re “conquering” the space (we are far, far away from that – and maybe we never will), or the “aliens” are regularly visiting Earth, as if it is just an hour’s drive from there. In fact, these people don’t truly understand what are they talking about, how big is the universe, how far the stars are, and how the Earth is a tiny, tiny spot in a vast space we are still striving to understand.
Continue reading The Size Of Earth Compared to Other Planets and Stars (and the Universe)
In 240 BC, the Greek astronomer, geographer, mathematician, music theorist and librarian Eratosthenes of Cyrene (c. 276 BC – c. 195/194 BC) calculated the circumference of the Earth without leaving Egypt. Here’s how:
Continue reading How Eratosthenes calculated the Earth’s circumference
A beautiful video, once again, from Michael Stevens, titled “How Earth Moves”. Michael explains many concepts, including “sub-solar point”, “sidereal day vs solar day”, or “how Earth moves in the space” etc, and he is doing it in a very simplified manner. Enjoy!
Continue reading How Earth Moves (Video)
Some natural events are so rare, so strange, but amazingly beautiful at the same time. They even seem like out of our world, and sometimes it’s hard to believe they truly exist. Here are a few of them, eight stunning and rare natural phenomena.
Continue reading 8 Amazing and Rare Natural Phenomena
We sometimes forget how amazing and interesting planet we live in. Here are amazing Earth facts. Some of them even may sound fake but in fact they are totally true.
Continue reading 35 Amazing Earth Facts
In 2006, Planet Earth, the British television series produced by the BBC Natural History Unit “has changed our view of the world”. It was the first nature documentary series filmed in high definition. It took five years in the making and it was the most expensive nature documentary series ever commissioned by the BBC. Now, ten years later, in February 2016, the BBC announced a six-part sequel had been commissioned, titled Planet Earth II. On October 2016, BBC released the new series’ trailer.
Continue reading Planet Earth II Official Extended Trailer
Earth is still the only planet we know where water can exist in liquid form on the surface and the water is vital for all known forms of life. Rain brings life: it is a major component of the water cycle (also known as hydrologic cycle, the continuous movement of water on, above and below the surface of the Earth) and is responsible for depositing most of the fresh water on the Earth. Here are the top ten wettest places on Earth.
Continue reading Top 10 Wettest Places on Earth
Alex Kuzoian and Jessica Orwig of Business Insider has prepared a video titled “Here’s why Elon Musk wants to colonize Mars”. In the video, we see some reasons why we should colonize Mars someday.
Continue reading Why we should colonize Mars (and other planets and the satellites too)
We are living on a tiny life-bearing rock, an oasis, in a large, very large and hostile desert called “Universe”. The universe is big, really big, in fact even our solar system is shockingly large compared to Earth. But again, our brains have problems dealing with the big numbers and the large objects.
Jacqui Frank of Business Insider has prepared video comparing our planet with large objects (and distances) in the Universe. These amazing to-scale visuals will help to recognize how small (and fragile) our planet is.
Continue reading Pale Blue Dot vol. 2 – The Tiny Earth
The title describes itself. Artist and designer Josh Worth has created a great web page which is actually a scaled model of our solar system. He scaled the Moon to only one pixel (the radius of the Moon is 1,737 km / 1079.322 mi) and put the planets and other objects like the Kuiper Belt accordingly.
Continue reading If the Moon Were Only 1 Pixel – A tediously accurate map of the Solar System