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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!
24 mar 2024 · In space exploration, the concept of a light-year is used to plan missions to distant objects in our solar system and beyond. By knowing the distance to these objects in light-years, scientists can calculate the time it would take for a spacecraft to reach its destination.
12 lip 2022 · The light in the Webb “deep field” image released on Monday is a snapshot of a part of the universe when it was less than a billion years old. What could learning more about the period closer ...
12 lip 2022 · NASA, ESA, CSA, and STScI. The initial images include the Carina Nebula, a dynamic region of new star birth with at least a dozen massive stars 50 to 100 times the size of our own Sun, and the...
Light-year is the distance light travels in one year. Light zips through interstellar space at 186,000 miles (300,000 kilometers) per second and 5.88 trillion miles (9.46 trillion kilometers) per year. We use light-time to measure the vast distances of space.
2 dni temu · Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
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.
