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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...

A layer of 'aerogel' could make Mars habitable and even enable life to develop there

Transforming the red planet to support life has long been a dream of science fiction. Mars is now too cold to support life. Its atmosphere is also too thin to protect any living organisms from harmful radiation. But a new study suggests that local conditions could be changed using an inch of "aerogel"—a synthetic and ultralight material made by taking a gel and replacing the liquid component with a gas.

from Space Exploration News - Space News, Space Exploration, Space Science, Earth Sciences https://ift.tt/2kaoD16

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