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 even the highest mountain on Earth – the Mount Everest, commercial aircraft typically fly between 31,000 and 38,000 feet – about 5.9 to 7.2 miles – high), we’re just skimming the surface of our planet. So, how high do you have to be to see the curvature of the Earth?

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Moon landing videos remastered

Run by a Dutch restoration specialist who remastering historic videos using Artificial Intelligence (AI), the Dutch Steam Machine (Dutchsteammachine) channel has published remastered Apollo Moon landing videos, as well as some other vintage space videos, and the results are astonishing.

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Subglacial lakes on Mars: an oasis for life?

Back in 2018, using the onboard radar instrument MARSIS (Mars Advanced Radar for Subsurface and Ionosphere Sounding), European Space Agency’s Mars Express orbiter discovered an underground reservoir that is buried about 1.5 km (0.93 mi) under the ice. Now, in September 2020, scientists analyzing Mars Express data have discovered three more subglacial lakes on Mars, or pools of liquid water buried under the ice in the south polar region of the red planet. Could they be an oasis for microbial life?

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Moon passing in front of Mars in this spectacular video

On September 6, 2020, French astrophotographer Thierry Legault (@ThierryLegault) went to the South of Lisbon to capture the event of the Moon passing in front of Mars. The result is this spectacular video, titled “Occultation of Mars by the Moon” by Legault himself.

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20 Amazing Snow Leopard Facts

The snow leopard (Panthera uncia), also known as the ounce, is a large cat and one of the five species classified in the genus Panthera, others being the lion (Panthera leo), tiger (Panthera tigris), jaguar (Panthera onca), and leopard (Panthera pardus). It is native to the mountain ranges of Central and South Asia. Here are 20 amazing snow leopard facts.

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How to Prepare Students for the Future of Work

The future of work worries everybody, but especially young students who are afraid of uncertainty. Most schools don’t teach students how to prepare for the future of work, and this is something that students require to have a successful career. According to Entrepreneur, most American schools don’t provide their students with entrepreneurial skills.

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Space Hero: Ever wanted to go to space? Now you may have a chance

Did you ever want to go to space? Become a “space hero”? Now you may have a chance.

When I was a kid, science-fiction TV shows were so popular. I grew up watchşng Star Trek, Battlestar Galactica, Space 1999, etc. Back then, in the 1980s, the excitement arose from the Moon landing, and other progress in space exploration was still hot, and the year 2000 was the “distant future”. A lot of people were dreaming to go to space in at least early 2ks and as a kid interested in science and technology, I was no exception.

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Life on Venus? Astronomers detected phosphine which is a strong signature of life

Life on Venus? Astronomers have detected the first sign of life in the deadly clouds of Venus. They found phosphine which displays a strong signature of life. If we can detect life itself soon, this might be the most exciting news in history.

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Funky Smells, Strange Sounds, and Weird Sights: Evolutionary Explanations About Our Senses

The world looked very different for early humans, and their daily life was vastly different from that of people living in the 21st century. Our five senses, once crucial to our survival, are easy to take for granted. For most modern humans, food is easily accessed, and we spend the bulk of our time indoors, well protected from the elements and various dangers.

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