Add Yahoo as a preferred source to see more of our stories on Google. Mosaic of the Valles Marineris hemisphere of Mars projected into point perspective, a view similar to that which one would see ...

Space jellyfish to people in Florida is like the Northern Lights to the general population: One of nature's light shows that ...

What if our biggest idea about reality is built on a hidden misunderstanding? A new philosophical look at space-time challenges the popular view that the past, present, and future all exist together ...

Death, taxes, and the gravitationally bound return of the Artemis II mission on Friday evening. These are the only certainties in life. Even if the four astronauts on board the Orion spacecraft ...

The mission, called Space Reactor 1 Freedom, will test advanced nuclear electric propulsion. Upon reaching Mars, the spacecraft would deploy helicopters to explore the planet from the air. This ...

People may know Artemis as NASA’s return-to-the-Moon program. However, it is much more than a rerun of Project Apollo. Amanda Laughead The Orion spacecraft (silver) and European Service Module (white) ...

A joint European-Chinese spacecraft is set to blast off Tuesday to investigate what happens when extreme winds and giant explosions of plasma shot out from the sun slam into Earth's magnetic shield.

The mission, called Space Reactor 1 Freedom, will test advanced nuclear electric propulsion. Upon reaching Mars, the spacecraft would deploy helicopters to explore the planet from the air. This ...