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By observing light from faraway cosmic objects, the Hubble Space Telescope is like a time machine. Light takes time to reach Hubble, because it travels great distances. That means images captured by Hubble today, show what the objects looked like years ago!
A reflection nebula called NGC 1999 lies close to the famous Orion Nebula, about 1,500 light-years from Earth. The nebula is illuminated by a bright, recently formed star called V380 Orionis, and the gas and dust of the nebula is material left over from that star’s formation.
9 lip 2024 · A light-year is the distance light travels in one Earth year. Learn about how we use light-years to measure the distance of objects in space.
12 lip 2022 · The Southern Ring Nebula, also called the “Eight-Burst,” is 2,000 light-years away from Earth. This large planetary nebula includes an expanding cloud of gas around a dying star.
12 lip 2022 · The Carina Nebula is a turbulent region of star birth, and death, approximately 7,600 light-years away in the southern constellation Carina. Webb’s infrared capabilities allow it to peer...
28 maj 2020 · A light year (ly) is the distance light travels in one Earth year. It is 9.4607×10 15 meters or 5.8786×10 12 miles, about 63 astronomical units or about 0.3 parsecs. It is an intermediate unit of astronomical distance.
24 mar 2024 · A light-year is a unit of measurement used in astronomy to describe the distance that light travels in one year. Light travels at a speed of about 186,282 miles per second in a vacuum, which is approximately 670,616,629 miles per hour.
