APOD
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.
The Cotton Candy Clouds of Rho Ophiuchi
Explanation: Although they look like cotton candy, you cannot eat these clouds! Taken in Cádiz, Spain , today's image features the Rho Ophiuchi complex , a rich tapestry of young and old astronomical phenomena. This colorful cloud complex is a nearby star-forming region containing hundreds of young stellar objects , including protostars and T Tauri stars . Light from the triple star system at its center reflects off of small dust grains to create the blue reflection nebula . Ultraviolet light from hot stars ionizes the surrounding hydrogen gas, creating the red emission nebula . Antares , a red supergiant big enough to engulf the Solar System’s asteroid belt , lights up the yellow region. Dark interstellar dust blocks some of the complex’s color. Recent JWST observations exhibit shadows cast by hidden circumstellar disks , the beginning stages of planet formation. Messier 4 , a globular cluster almost as old as the universe, sits in the bottom right and witnesses yet another chaotic burst of youth in the Milky Way.
| Date | July 1, 2026 |
|---|---|
| Credit |
Image Credit & Copyright: Ángel Molina Text: Keighley Rockcliffe ( NASA GSFC , UMBC CSST , CRESST II ) |
| Authors & editors: | Robert Nemiroff (MTU) & Jerry Bonnell (UMCP) |
| A service of: |
ASD at NASA / GSFC, NASA Science Activation & Michigan Tech. U. |



