Winter solstice 2019
For six months now, the days have grown shorter and the nights have grown longer in the Northern Hemisphere -- but that's about to reverse itself.
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For six months now, the days have grown shorter and the nights have grown longer in the Northern Hemisphere -- but that's about to reverse itself.
Boeing's Starliner spacecraft failed to put itself on the correct course during an uncrewed test flight on Friday and will not reach the International Space Station during this mission.
Unlike its geographical poles, Earth's magnetic poles that serve as the foundation of our navigation are actively moving.
Andy Ridley is shivering in a wet T-shirt on the deck of the Dreamtime after coming up from a dive on the outer edge of Australia's Great Barrier Reef.
NASA's Juno mission spotted a new cyclone the size of Texas during a close flyby of Jupiter in November.
The Hubble Space Telescope had a front row seat to capture the best and closest image to date of interstellar comet 2I/Borisov, a visitor that originated from outside of our solar system. On Sunday, the comet passed within 190 million miles of Earth on its closest approach before continuing on through our solar system.
When the first astronauts land on Mars, they won't be able to take everything they need with them. The logistics and weight of transporting so much material on one spacecraft, along with a crew, defies current technology. While scientists at NASA have discussed missions to deliver materials to the Red Planet ahead of a manned mission, there may be resources on Mars that can be used.
A long time ago in a galaxy far, far away, there was a breathtaking diversity of planets. From the cockpit of the Millennium Falcon, rebel ships and Imperial cruisers, we've seen a colorful variety of them come into view. Harsh deserts baked by twin suns, craggy caverns, lush forests, water worlds, mineral-coated surfaces, inhospitable ice, inhabited moons and even lava worlds have greeted our gaze.
After nearly a decade of funneling money into a project to build a gargantuan rocket that NASA hopes will return astronauts to the moon, the launch vehicle is finally assembled and ready for testing.
NASA's OSIRIS-REx mission arrived at near-Earth asteroid Bennu a year ago, and the spinning top-shaped space rock has been full of surprises. The latest findings now classify it as an active asteroid with observable events happening on the surface.