Emission nebulae are the subject of many of the most spectacular astrophotographs published in the last decade. Although there are many subcategories of nebulae, they all consist of interstellar gas ...

Share on Facebook (opens in a new window) Share on X (opens in a new window) Share on Reddit (opens in a new window) Share on Hacker News (opens in a new window) Share on Flipboard (opens in a new ...

If you are a frequent reader of Astronomy, then you likely have seen images on its pages of objects from the famous Lynds' Catalogue of Dark Nebulae. These mysterious dark clouds of interstellar dust ...

Planetary nebulae represent a brief, yet illuminating, phase in the evolution of low- to intermediate-mass stars. These glowing shells of ionised gas are shed in the late stages of stellar development ...

Hubble’s newest view of the spiral galaxy NGC 2835 adds a stunning twist to a familiar sight. By capturing light in a special wavelength called H-alpha, astronomers have revealed glowing pink nebulae ...

Editor’s note: On 6 August 2023 SpaceRef.com editor Keith Cowing spoke with Al Jazeera Arabic about the recently released image of the Ring Nebula taken by the Webb Space Telescope. [Audio] NASA’s ...

Hubble Telescope image of the Horsehead Nebula. Credit: T.A.Rector (NOIRLab/NSF/AURA) & Hubble Heritage Team (STScI/AURA/NASA) Nebulae are all but impossible to spot in the night sky, but you'd never ...