Australian researchers have developed "thermoradiative diodes" that convert infrared radiation emitted from Earth into space at night into electricity. This reverse solar panel technology shows promise for satellite power and deep space missions. Explore the potential and challenges of this renewable energy breakthrough.
NTT is moving to repurpose its nationwide underground communication conduits for hydrogen transport. Using 600,000km of existing infrastructure could cut initial costs to under half of new pipeline construction. Commercialization is targeted for 2028, with transport trials in Tokyo set for fiscal 2026.
CATL has taken sodium-ion cells into mass production. They can be shipped at 0V, which all but removes the fire risk in transit, they hold about 90 percent of their performance at -40°C, and they run past 10,000 charge cycles. Here is where the energy density problem still stands.