HD 63433d is a rocky world almost exactly the same size as our Earth, orbiting a star so close that instead of watery oceans, it is enveloped by seas of lava.

Science SpaceX: Starlink already 'fast enough to stream multiple HD movies at once' Elon Musk's company has been beta testing its new broadband service in northern latitudes.

Perseverance has captured a high-definition, 360-degree panorama of its surroundings on the floor of Mars' Jezero Crater, which harbored a lake and a river delta billions of years ago.

Leica Trinovid 10x42 HD binocular review Solid optical performance in a simple but stylish package, the Leica Trinovid 10x42 HD binoculars feel good in the hand and are easy on the eye.

MY-HD has announced Wednesday the launch of Animal Planet HD and Discovery Science HD on its platform. The Discovery Networks channels will launch on My-HD in February across the Middle East and ...