What appears to be a ghostly hand reaching across the universe toward a defenseless spiral galaxy in a new telescope image is a rarely seen cosmic phenomenon, according to astronomers. The Dark Energy ...

Add Yahoo as a preferred source to see more of our stories on Google. We're getting a look at a new telescope image that shows what looks like a ghostly hand reaching across the universe. It's being ...

(CNN) — Space scientists seeking to understand the enigmatic origins of powerful cosmic rays have detected an extremely rare, ultra-high-energy particle that they believe traveled to Earth from beyond ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. What appears to be ...