materials

elon muskSpaceX Switching to Thin Tile Heat Shield Instead of Active Cooling

Elon Musk indicated that SpaceX will test thin ceramic tiles to protect the Super Heavy Starship from re-entry heat instead of using active transpirational cooling. This will only need to be on 10-20% because the steel alloy could handle most …

air forceUS Air Force Starts B-21 Prototype Construction

The US Air Force is building its first test version of the new next-generation B-21 Raider stealth bomber. The B-21 will have regular stealth against higher-frequency engagement radar and also against lower-frequency surveillance radar. China and Russia have shifted to …

elon muskSpaceX Orbital Starship is Getting Stacked in Texas

The orbital version of the SpaceX Starship is getting stacked in Texas. Pictures from Maria Pointer show that there seem to be improvements in how each of the ring sections are being constructed. The newest rings appear to be superior …

materialsTwo Quintillion Tons of Metal or Dense Oxides Found on the Moon

A large mass of material has been discovered beneath the largest crater on the Moon, the South Pole-Aitken basin, and it may contain metal from an asteroid that crashed into the Moon and formed the crater. If this is a …

materialsDiamonds and Ion Qubits

There are three major competing Quantum computer technologies for qubits. They are nitrogen-vacancy (NV) centers in diamond lattices, trapped ions, and superconducting qubits. The benefit of trapped-ion systems is that the ions are inherently going to affect one another. They’re …

diamondNanostructured Diamond Metalens For Compact Quantum Technologies

The key to harnessing the potential power of quantum systems is being able to create or find structures that allow electron spin to be reliably manipulated and measured, a difficult task considering the fragility of quantum states. Bassett’s lab at …

materialsA SpaceCraft Could Get to 430,000 Miles From the Sun Using Proposed Coating

In 2018 the Parker Solar Probe launched and plans to approach the Sun to within 8.5 solar radii (4 million miles) of its surface. This is seven times closer than any previous mission. Researchers think a new coating could allow …

materialsMost Plastic Was Not Recycled But Was Dumped

78% (830,000 tonnes) of the 2018 U.S. plastic waste exports were sent to countries with waste “mismanagement rates” greater than 5%. Mismanagement means the plastic was probably dumped in a river. The actual mismanagement rates in China, India and Vietnam …