A DARPA official said the agency canceled a space nuclear propulsion project it was jointly developing with NASA as it was overtaken by lower launch costs.

Are you preparing for UPSC CSE Prelims 2026? Check your progress and revise your topics through this quiz on Science and Technology.

Ancient catapults were used for siege, disruption and area denial (maximum range, about 300 meters); modern missiles are used ...

Discover how NASA’s MARVL project is revolutionizing Mars missions with robot-assembled nuclear propulsion systems built in ...

Researchers have reported new progress in developing a liquid uranium-fueled rocket engine, a Centrifugal Nuclear Thermal Rocket (CNTR). “The Centrifugal Nuclear Thermal Rocket (CNTR) is a ...

More information: Dale Thomas et al, Addressing challenges to engineering feasibility of the centrifugal nuclear thermal rocket, Acta Astronautica (2025). DOI: 10.1016/j.actaastro.2025.05.007 ...

DONALD Trump hinted at a nuclear deal with Iran after threatening to bomb the regime “like never before”. The US President said an agreement is “well on its way,” while Iran… ...

For the study, the researchers used computer models based on data obtained from NASA’s now-retired Mars InSight lander to simulate conditions within the interior of Mars depicting the absence of an ...

How hot is the core of the Earth? Experts believe that Earth’s core exceeds temperatures higher than the surface of the sun — over 18,032 degrees Fahrenheit (10,000 degrees Celsius).

For comparison, the rocket fuel used in traditional space missions produces 43 megajoules (10 6 joules) per kilogram. Nuclear fusion, the power source of the Sun, offers about 6.4×10 15 joules ...

A new test of nuclear propellant fuel under space-like conditions has been hailed as a success by NASA and General Atomics Electromagnetic Systems (GA-EMS), in what is considered one more step on ...

Ad Astra Rocket Company has spent over two decades developing the Variable Specific Impulse Magnetoplasma Rocket (VASIMR), a highly efficient electric propulsion system. VASIMR operates by using ...