Nuclear

NASA and DARPA have agreed to develop and test a nuclear rocket engine in space as soon as 2027. Using a nuclear reactor as its power source, it would outperform chemical rockets and greatly reduce the time for the first crewed Mars mission.

In a move that could see a new generation of deep-space CubeSats, NASA has greenlighted a project by the Rochester Institute of Technology to develop a nuclear power source that is a tenth the size of those in current use for planetary missions.

Russia is the only country that sells the HALEU fuel that some next-generation nuclear plants will rely on, and with sanctions now in place due to the war in Ukraine, TerraPower has now conceded its demo timeline will blow out by at least two years.

Having achieved a self-heating “burning plasma” in the quest for producing clean, limitless energy using nuclear fusion, on closer inspection of that plasma researchers have discovered strange, unexplained behavior of ions within it.

Evolution occurs as species adapt to environmental pressures, and few environments exert pressures like the Chernobyl exclusion zone. A new study shows evolution in action as frogs within the radioactive region are turning blacker than those outside.

Some fusion projects aim to create hundred-million degree working temperatures in magnetically confined plasma. The CEO of TAE Technologies tells us his team's aiming for 10 times that temperature, targeting cheaper, easier and safer boron fuel.

The first generation-IV nuclear reactor design has been approved for certification by the US Nuclear Regulatory Commission. NuScale's small modular reactor design promises safe, clean energy at radically reduced cost, land use and installation time.

Nuclear fusion is an incredibly complex scientific problem that researchers are coming at from all sorts of angles, and company Zap Energy is starting to make waves through one of the lesser-known approaches.

NASA is turning to nuclear power will keep the lights on in tomorrow's Moon bases. The space agency has awarded US$15 million in contracts to three preliminary designs for 40-kW nuclear fission reactors to be tested on the lunar surface by 2030.

Arkenlight and Axorus have teamed up to prototype the first artificial neuron powered by a diamond betavoltaic battery made from nuclear waste. The goal is to develop medical-grade implants with energy sources that will last decades without charging.

Norway-based marine group Ulstein has introduced Thor, its concept design for a 149-m (489-ft) replenishment, research and rescue (3R) ship powered by a thorium Molten Salt Reactor (MSR) that can be used to recharge battery-driven cruise ships at sea.

While stellarator fusion reactors have conventionally featured irregularly shaped magnetic coils, scientists have now developed simpler and straighter versions they say can offer some important benefits.