Sound needs a medium (solid, liquid, or gas) to travel. Space is a vacuum, lacking the matter to carry sound waves. No sound in space means no echoes. While a near-perfect vacuum, some sounds can be ...

In space, no one can hear you scream. You may have heard this saying. It’s the tagline from the famous 1979 science fiction movie “Alien.” It’s a scary thought, but is it true? The simple answer is ...

A mysterious hum resonating from deep space has captured the attention of scientists and the public alike. Detected by the Voyager spacecraft, this eerie sound has sparked questions and intrigue about ...

Space is mostly quiet. Data collected by telescopes is most often turned into silent charts, plots, and images. A “sonification” project led by NASA’s Chandra X-ray Observatory and NASA’s Universe of ...

That now classic tagline (from Alien, one of the greatest science-fiction horror movies ever made) hinges on a big assumption that most of us broadly make: space is empty. And it is—mostly. But there ...

A recent discovery of a mysterious gas in deep space has left astronomers in a state of shock. This revelation is the latest ...

Previous studies concluded there were some weird light-generating objects out there, but that doesn't appear to be the case. Reading time 3 minutes To paraphrase the great Nigel Tufnel, when you look ...

Larger aperture telescopes gather more light, showing fainter objects. Focal length affects magnification; longer lengths show more detail. Reflectors are affordable and good for deep-space viewing. A ...