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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...
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Can polarity-inverted membranes self-assemble on Saturn's moon Titan?

Astrobiologists are focused on resolving two central questions to understand the environmental and chemical limits of life. By understanding life's boundaries, they intend to identify possible biosignatures in exoplanet atmospheres and in the solar system. For example, the lipid bilayer membrane is a central prerequisite for life as we know on Earth. Preceding studies based on simulations of molecular dynamics have suggested that polarity-inverted membranes known as azotosomes made of small nitrogen-containing molecules may be kinetically abundant on cryogenic liquid worlds such as Saturn's moon Titan.

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