Nebulae are some of the most breathtaking sights in the universe — vast clouds of gas and dust where stars are born, or where they meet their spectacular ends. From the delicate wisps of the Veil ...

The article describes planetary nebulae, the glowing shells of gas expelled by dying stars, their formation resulting from the exhaustion of a star's hydrogen fuel and subsequent gravitational ...

The latest image from the Hubble Space Telescope turns a quiet patch of sky into a spectral scene, revealing a so‑called “Ghost Nebula” where a dying star is shedding its outer layers into space. The ...

Nebula Inc., whose pizza-box-sized hardware enables companies to use cheap servers to create large private clouds, has named Gordon Stitt as chief executive. Former Chief Executive Chris Kemp, who ...