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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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Indian scientists make deepest radio images of the sun

The sun is the brightest object in the sky, and probably the most studied celestial object. Surprisingly, it still hosts mysteries that scientists have been trying to unravel for decades, for example, the origin of coronal mass ejections which can potentially affect the Earth. Led by Dr. Divya Oberoi and his Ph.D. students, Atul Mohan and Surajit Mondal, a team of scientists at the National Centre for Radio Astrophysics (NCRA), Pune, India, have been leading an international group of researchers to understand some of these mysteries. The sun has some of the most powerful explosions in the solar system. Their possible impacts on Earth include electric blackouts, satellite damage, disruption of GPS based navigation, and other sensitive systems. Hence, it is becoming increasingly important to understand and predict space weather reliably.

from Astronomy News - Space News, Exploration News, Earth Science News, Earth Science http://bit.ly/2DfMy5J
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