On its own, 24 kWh doesn't seem like a lot of power. The problem is that we will need a lot of kilograms. The researchers ...

An international team of engineers and space scientists has used a variety of assumptions, techniques, and math principles to ...

Eco-friendly alternatives to fossil fuels are venturing beyond Earth—and into space.

A new test of nuclear propellant fuel under space-like conditions has been hailed as a success by NASA and General Atomics ...

First conceived of in 1945, this is a rocket that replaces burning chemical fuel with a nuclear reactor that is used to heat up a propellant. This propellant is most likely hydrogen, though ...

NASA and General Atomics tested the fuel by exposing it to temperatures up to 3,000 Kelvin (4,940 Fahrenheit or 2,727 Celsius ...

Rocket engine manufacturer Ursa Major is accelerating the development of its Draper engine. The startup is collaborating with US agencies and military contractors to make the engine available for use ...

Scientists are developing a new space propulsion system that uses water as fuel, promising a more sustainable way to explore ...

The tests showed the fuel can withstand the harsh conditions of a nuclear thermal propulsion reactor. In other words, it has the capability to one day power a nuclear rocket that could fire humans ...

STORY: It’s supposed to take American astronauts back to the Moon. But NASA’s giant new rocket has been dogged by delays and ...

the relative inefficiencies of traditional chemical rockets come into sharp focus. While they do have the power to get spacecraft to Mars and beyond, they require a lot of fuel to do so ...