Space & Physics

Scientists are working to solve a mystery of Earth’s molten outer core, which lies more than 2,000 kilometers beneath our feet

Our galaxy and its nearest large companion, Andromeda, may be headed for a collision on a cosmic scale. What happens then?

This launch, when it comes, will mark the 12th flight test of Starship and the first demonstration of its V3 design. A new attempt could come as soon as Friday

An out-of-this-world weather report from NASA’s James Webb Space Telescope reveals how clouds move across a giant planet hundreds of light-years from Earth

Friday’s flight could be the most pivotal test of the Starship megarocket

NASA’s Psyche snapped images as it flew by Mars last week. The spacecraft used the planet’s gravity to give itself a boost on its journey toward its target asteroid

Nuclear power could enable long-term lunar missions, but NASA’s timeline may be too ambitious

SpaceX is now targeting the evening of May 21 to launch the latest and largest version of its Starship megarocket for the first time

The new image shows the galaxy NGC 1266, a transitional object with a clutch of young stars that likely collided with a smaller galaxy 500 million years ago

Here are six ways to build a quantum computer

To build its moon base, NASA needs a lot of power

This company says its pulsed plasma machine will deliver electricity to the grid by 2029. Some physicists warn that its promises are outrunning what the technology has proved