These mysterious night-shining clouds, or noctilucent clouds, seem almost otherworldly, as if the heavens themselves are ...

Stupid question, but” is a column answering the not-so-stupid questions that, at this point, we’re all too afraid to ask. The ...

D ay 13 of the 2024 Space Telescope Advent Calendar: a cloud in the deep sky. This image, featuring the central region of the Chameleon I dark molecular cloud, about 630 light-yea ...

glowing blue spiral in the sky. Images and videos posted to social media showed the strange cloud-like phenomenon, with users wondering what caused the intriguing sight. The UK Met Office, ...