You can be moving at extraordinary speed and still feel completely stationary. The reason comes down to the difference between velocity and the changes in motion your body can actually detect.

Traveling to each planet depends on distance, spacecraft speed, orbital timing, and mission design. Even inside our own Solar ...

If we achieve advanced nuclear, antimatter propulsion or other advance propulsion it would be possible to achieve near constant acceleration. This would enable travel times to Mars in the 3-8 day ...

Using NASA's free 'Eyes on the Solar System,' you can freely fly around the solar system in 3D right from your browser. You ...

Scientists mapping the bubble our solar system finds itself in made a new discovery, there is an “interstellar tunnel” that may connect to another bubble. The Earth and our solar system with it are ...

Many objects, such as comets and asteroids, have always passed through the solar system. But recently, a new interstellar object has been spotted by astronomers, and its trajectory and speed are ...

The distances between stars may be too enormous for humanity to overcome with conventional spacecraft. But even if ...

This cosmic visitor is now officially named 3I/ATLAS, and it appears to be a comet from another solar system. Reading time 3 minutes Update: July 3, 09:24 a.m. ET: On Wednesday, July 2, the ...

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space telescopes and orbiters have been documenting the rare visit. A mysterious ...