NASAさんのインスタグラム写真 - (NASAInstagram)「Shine bright like a ULIRG 💎⁣ ⁣ With the light of a trillion suns, an ultra-luminous infrared galaxy (ULIRG) shines in the latest @NASAWebb image. In comparison, our Milky Way has a much more modest light of about 10 billion suns. Located 250 million light-years away, this target is actually the result of two spiral galaxies colliding.⁣ ⁣ The collision of the two spiral galaxies began about 700 million years ago. It sparked an enormous burst of star formation. About 200 huge star clusters reside in a packed, dusty region about 5,000 light-years across (only 5% of the Milky Way’s diameter), yet, the amount of gas in this tiny region is equal to all of the gas in the entire Milky Way galaxy.⁣ ⁣ Image description: A black, deep space image is dominated by a large central object. This object resembles a snowflake-like feature with a bright white core and 8 pinkish orange spikes. It is surrounded by additional wisps of pinkish orange and blue gas. In reality, this “snowflake” is actually two colliding galaxies with merging cores. The brilliant light from the star formation surrounding these cores creates diffraction spikes, an optical effect that occurs when bright light interacts with a telescope’s optics. The background is punctuated with scattered red, white and orange galaxies of various shapes and sizes.⁣ ⁣ Credit: NASA, ESA, CSA, STScI with image processing by Alyssa Pagan (STScI)⁣ ⁣ #NASA #NASAWebb #JWST #Space #Astronomy #Astrophotography #ShineBright #Galaxy」4月18日 7時47分