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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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Discovering trailing components of a coronal mass ejection

Using Green Bank Observatory in West Virginia, PSI Associate Research Scientist Elizabeth A. Jensen's team observed radio signals from the MESSENGER spacecraft and discovered that solar eruptions known to cause communication disruptions and electrical grid failures as they hit Earth have secondary trailing impacts. Jensen is lead author of "Plasma Interactions with the Space Environment in the Acceleration Region: Indications of CME-trailing Reconnection Regions" that appears in The Astrophysical Journal. Co-authors include PSI Senior Scientists Deborah Domingue Lorin and Faith Vilas.

from Space Exploration News - Space News, Space Exploration, Space Science, Earth Sciences https://ift.tt/2NozE8t
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