From the perspective of a distant observer, an object approaching a black hole's event horizon will appear increasingly redshifted due to gravitational effects on light. General relativity predicts ...

If you drop an object, it will fall. It's a motion that we’ve all seen hundreds of times. We’ve also all seen plenty of the moon, which makes one complete orbit around our planet every 27.3 days (as ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. overall: 41 1/2 in x 1 5/8 in; 105.41 ...

Eerie footage shows the moment a mystery object falls from the sky over London. Sarah Sabherwal, 32, captured what appeared to be a fireball on her phone camera on Saturday (27/9) morning. The flaming ...