NASA’s Spitzer Space Telescope has spotted a cloud of gas and dust full of bubbles, which are inflated by wind and radiation from young, massive stars, said a latest release of NASA’s Jet Propulsion Laboratory (JPL).
Each bubble is filled with hundreds to thousands of stars, which form from dense clouds of gas and dust.
The bubbles are estimated to be 10 to 30 light-years across. But determining the exact sizes of individual bubbles can be difficult, because their distance from Earth is challenging to measure and objects appear smaller the farther away they are, according to JPL.
This active region of star formation is located within the Milky Way galaxy, in the constellation Aquila.
Spitzer sees infrared light, which is not visible to the human eye. Many interstellar nebulas like this one are best observed in infrared light because infrared wavelengths can pass through intervening layers of dust in the Milky Way galaxy, said JPL.