Besides stars, the United States Navy uses quasars as beacons. Quasars are distant galaxies with supermassive black holes, surrounded by ... X-Ray Flashes from a Nearby Supermassive Black Hole ...

Looking to upgrade to a TV with a 120Hz refresh rate for next-gen gaming? These are the top options The best 120Hz 4K TVs are essential for gamers, movie lovers and sports fans. That's because the ...

The best 55-inch 4K TVs are a great size for those stepping into the idea of a big, beautiful home theater. 55 inches is the amount of space where 4K resolution, advanced HDR tech and super-smooth ...

Partly cloudy. Slight chance of a shower. The chance of a thunderstorm. Winds east to northeasterly 15 to 25 km/h tending northwest to northeasterly 15 to 20 km/h in the evening. Sun protection ...

It offers an incredible picture (especially for 4K, HDR movies and shows ... Its self-lit pixels allow for perfect black levels and precise contrast control. There are other benefits to the ...