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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...

NASA calls for instruments, technologies for delivery to the moon

NASA has announced a call for Lunar Surface Instrument and Technology Payloads that will fly to the Moon on commercial lunar landers as early as next year or 2020. The agency is working with U.S. industry and international partners to expand human exploration from the Moon to Mars. It all starts with robotic missions on the lunar surface, as well as a gateway for astronauts in space orbiting the Moon.

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

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