The Milky Way [c] is the galaxy that includes the Solar System, with the name describing the galaxy's appearance from Earth: a hazy band of light seen in the night sky formed from stars that cannot be individually distinguished by the naked eye.

2017年11月8日 · Using infrared images from NASA’s Spitzer Space Telescope, scientists have discovered that the Milky Way’s elegant spiral structure is dominated by just two arms wrapping off the ends of a central bar of stars. Previously, our galaxy was thought to …

2025年1月15日 · Milky Way Galaxy, large spiral system consisting of several hundred billion stars, one of which is the Sun. It takes its name from the Milky Way, the irregular luminous band of stars and gas clouds that stretches across the sky as seen from Earth.

2023年4月18日 · The Milky Way galaxy is our cosmic home. A barred spiral galaxy stretching 100,000 light-years across. Here we explore our galactic neighborhood in more detail.

2024年1月1日 · When you are standing under a completely dark, starry sky, away from light pollution, the Milky Way appears like a cloud across the cosmos. But that cloud betrays no clue as to what it actually...

2022年2月25日 · The Milky Way is the second-largest galaxy in the Local Group of galaxies; the first place goes to Andromeda. The Milky Way is 105,700 light-years wide while the Andromeda Galaxy is 220,000 light-years in width .

Milky Way Galaxy, Large spiral galaxy (roughly 150,000 light-years in diameter) that contains Earth’s solar system. It includes the multitude of stars whose light is seen as the Milky Way, the irregular luminous band that encircles the sky, defining the plane of the galactic disk.

2025年1月15日 · Milky Way Galaxy - Structure, Dynamics, Stars: The first reliable measurement of the size of the Galaxy was made in 1917 by American astronomer Harlow Shapley. He arrived at his size determination by establishing the spatial distribution of globular clusters.

2023年11月1日 · These powerful instruments unveiled an astonishing truth: The Milky Way is not a mere collection of stars but a galaxy with a graceful spiral shape. And contrary to popular belief, our solar system does not sit at the center of it.

1 天前 · Our Milky Way galaxy is about 100,000 light-years in diameter, and the Bullseye is almost two-and-a-half times larger, at 250,000 light-years across. This illustration compares the size of our own Milky Way galaxy to gargantuan galaxy LEDA 1313424, nicknamed the Bullseye. The Milky Way is about 100,000 light-years in diameter, and the Bullseye ...