Astronomers have found a vast loop-like structure, 20 light years across, adjacent to the most massive star-forming region known in our galaxy. The loop, which was observed in X-ray wavelengths, is 15 ...

The elusive particle that physicists knew had to to exist, but took half a century to find. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The ...

On a sunny spring day one of us (Dixon) entered the London Underground at the Mile End station on his way to Heathrow Airport. Eyeing a stranger, one of more than three million daily passengers on the ...