Meet the Oort cloud, an invisible spherical shell of trillions of icy comets! | Interstellar Traveller

In the far reaches of our solar system lies a fascinating region where billions of comets orbit. Oort cloud is this week’s Museum of Science, Boston and Dictionary.com #ScienceWordOfTheWeek! Presented by Maynard Okereke, better known as Hip Hop Science M.D. #vocabulary #dictionary #wordoftheday #wordnerd #sciencefacts #astronomy #oortcloud #janoort #solarsystem #comet #universe | Museum of Science, Boston

🌌 The Oort Cloud: Our Solar System’s Mysterious Boundary 🌌 Far beyond the planets, past Pluto and the Kuiper Belt, lies one of the most mysterious regions of our Solar System — the Oort Cloud. 🔭 What is it? The Oort Cloud is a vast, spherical shell of icy objects that surrounds the Sun at a distance of about 2,000 to 100,000 astronomical units (AU). (1 AU = distance from Earth to the Sun). It marks the outermost edge of the Sun’s gravitational influence. 🌠 What’s inside? It is believed to co