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Oort cloud

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Oort cloud

Spherical cloud of comets beyond Pluto, extending out to about 100,000 astronomical units (approximately 1.6 light years) from the Sun. The gravitational effect of passing stars and the rest of our Galaxy disturbs comets from the cloud so that they fall in towards the Sun on highly elongated orbits, becoming visible from Earth. As many as 10 trillion comets may reside in the Oort cloud, named after Dutch astronomer Jan Oort who postulated its existence in 1950.
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The Oort Cloud is a remnant of the nebula from which the solar system formed 4.
Earth's mass extinctions not likely caused by crashing comets by Asian News International
For the past 25 years, the inner Oort Cloud has been considered a mysterious, unobserved region of the solar system capable of providing bursts of bodies that occasionally wipe out life on Earth," said study author Nathan Kaib.
Comets probably won't cause the end of life as we know it: study by AFP / AFP American Edition
For the past 25 years, the inner Oort Cloud has been considered a mysterious, unobserved region of the solar system capable of providing bursts of bodies that occasionally wipe out life on Earth," said study author Nathan Kaib.
Comets probably won't cause the end of life as we know it: study by AFP / AFP Global Edition
 
 
 
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