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Star Betelgeuse - A red supergiant in the constellation Orion

One fascinating star is Betelgeuse, a red supergiant located in the constellation Orion. Here are some intriguing facts about it: 1. Size and Volume: Betelgeuse is immense—if placed at the center of our solar system, it would extend past the orbit of Mars. 2. Variability: It is a pulsating variable star, meaning its brightness changes over time; it has been observed to vary in brightness over several months. 3. Life Cycle: Betelgeuse is nearing the end of its life cycle and is expected to explode as a supernova within the next million years, a relatively short time in astrophysical terms. 4. Distance: It is located approximately 640 light-years away from Earth. 5. Cultural Significance: Betelgeuse has been significant in many cultures and is commonly referred to as the “Shoulder of the Hunter” in the constellation Orion. 6. Color Indicator: Its reddish hue signifies a cooler surface temperature compared to other stars, which gives it a distinctive appearance. Betelgeuse con...

Image: 115 years of flight

For most of human history, we mere mortals have dreamt of taking to the skies—from the myth of Icarus, to kites in China, to the development of hydrogen-filled balloons in the 8th century, to early experiments with gliders in the 19th. Then, 115 years ago on on December 17, 1903, Orville and Wilbur Wright achieved what many thought impossible—flight by a powered heavier-than-air aircraft.

from Space Exploration News - Space News, Space Exploration, Space Science, Earth Sciences https://ift.tt/2ClHIUt

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