Astronomers have long sorted galaxies into types based on their visible structure. Spiral galaxies, like our Milky Way, have a flat disk, winding spiral arms and ongoing star formation. Ellipticals ...

The Cadillac Escalade is not just another full-size body-on-frame luxury SUV produced by General Motors alongside the Chevrolet Tahoe, Suburban, and GMC Yukon, plus Yukon XL siblings. It's the ...