"If you are interested in long-term space colonization or lunar bases or Mars bases, nuclear becomes quite quickly your only option," said James Walker.

In 1957, scientists detonated a nuclear bomb under the Nevada desert — and launched a steel manhole cover at unimaginable speed. Some say it reached space, beating Sputnik by months. This video ...

Washington is focused on expanding its launch capabilities for a potential deployment of offensive weapons to orbit, said Stepanov ...

When it comes to warfare in space, many envision lasers, missiles and maybe a nuclear device tucked into orbit. But Christopher Scolese, who runs the National Reconnaissance Office, isn’t worried ...

Astronomers are considering blowing up the “city killer” asteroid, estimated to have a small chance of crashing onto the Moon in 2032, to cut the risk of the collision debris destroying satellites.

The weight of the asteroid may vary from 51 million kg to more than 711 million kg, and the energy required to move each of those weights precisely differs greatly.

Some things we see in space appear to outpace light. Now we are learning to harness these bizarre optical illusions to understand the mysteries of neutron stars, gamma ray bursts and more ...

The U.S. is experiencing rapid growth in commercial launch capabilities, making nuclear systems essential for exploration, security, and economic goals, including radioisotope power systems and ...

In 2022, NASA intentionally rammed a spacecraft into a small asteroid at 14,000 mph, knocking it off course. The goal was to demonstrate a proof of concept for keeping humanity safe from a space rock ...