Abstract: Pulsed eddy current (PEC) testing is a nondestructive testing (NDT) method, which is highly suitable for thickness measurement and sub-surface-defect detection. In this article, PEC testing ...

Add Yahoo as a preferred source to see more of our stories on Google. Earth draws closer to passing behind the moon in this image captured by the Artemis II crew during their lunar flyby, about six ...

The Artemis II astronauts fielded questions during an in-space news conference Wednesday, April 8, aboard their Orion spacecraft Integrity. Mission Specialist Christina Koch shared details about ...

The Artemis II astronauts are making their way back to Earth after the lunar flyby. The crew became the first astronauts in over 50 years to fly around the far side of the moon. They also experienced ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. This voice experience is generated by AI. Learn more. This ...

The crew spent about seven hours circling the moon, taking photographs and making observations of never-before-seen features. For the first time, humans have glimpsed the entire far side of the moon ...

Abstract: This letter presents a new method for placing frequency selective surface (FSS) unit cells on complex curved surfaces, while uniformly maintaining their geometric dimensions and periodicity ...