কোটি কোটি ডলার মূল্যের মূল্যবান সম্পদ এই গ্রহাণুতে পেয়েছে নাসা | 16 psyche asteroid
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One of the most intriguing targets in the main asteroid belt, 16 Psyche is a giant metal asteroid,
about three times farther away from the sun than is the Earth.
Its average diameter is about 140 miles (226 kilometers) — about one-sixteenth
the diameter of Earth’s Moon or about the distance between Los Angeles and San Diego.
Unlike most other asteroids that are rocky or icy bodies, scientists think the M-type (metallic) asteroid 16 Psyche is comprised mostly of metallic iron and nickel similar to Earth’s core. Scientists wonder whether Psyche could be an exposed core of an early planet, maybe as large as Mars, that lost its rocky outer layers due to a number of violent collisions billions of years ago.
Astronomers on Earth have studied 16 Psyche in visible and infrared wavelengths, as well as radar,
which suggests Psyche is shaped somewhat like a potato. Observations indicate that its dimensions are 173 miles by 144 miles, by 117 miles (that’s 279, 232, and 189 kilometers, respectively). Psyche
orbits the Sun between the orbits of Mars and Jupiter at a distance ranging from 235 million to 309
million miles (378 million to 497 million kilometers) from the Sun. That’s 2.5 to 3.3 Astronomical
Units (AU), with 1 AU being the distance between Earth and the Sun. Psyche takes about five Earth years to complete one orbit of the Sun, but only a bit over four hours to rotate once on its axis
(a Psyche “day”).
#GOLDENASTEROID #16Psyche #Asteroidnews #Asteroid #Sciencenews
#Richestasteroid #Expensiveasteroid #massiveasteroids #Asteroidbelt
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Copyright Disclaimer under Section 107 of the Copyright Act 1976, allowance is made for “fair use” for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational, or personal use tips the balance in favor of fair use.
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