Although there are no seasons in space, this cosmic vista invokes thoughts of a frosty winter landscape. It is, in fact, a… https://www.rawpixel.com/image/8718105/photo-image-clouds-space-lightFree Image from public domain licenseThis hemispherical window was designed to cover the camera ports inside Argonne Lab's 12-foot (diameter) hydrogen bubble… https://www.rawpixel.com/image/3325630/free-photo-image-black-white-aec-argonne-labFree Image from public domain licenseProton with 300 GeV energy producing 26 charged particles in the 30 inch hydrogen bubble chamber at FERMILAB, c.1973.… https://www.rawpixel.com/image/3322287/free-photo-image-cc0-creative-commonsFree Image from public domain licenseHubble's Cosmic Bubbles. a large bubble-like structure wrapped around an extremely large, bright type of star known as a… https://www.rawpixel.com/image/440047/free-photo-image-nasa-dog-1052Free Image from public domain license