A dead satellite can become a high-speed hazard in an orbit that is already packed with working spacecraft. That risk is why ...

It could be the largest lunar impact event in 5,000 years.If it hits in December 2032, asteroid 2024 YR4 — believed to be 60 ...

Georgia’s custody law complicates a father’s legal rights. Election security advocates sue to get rid of Georgia’s touchscreen voting system. Buddy Carter listed among Congress’ top talkers.

The princess, 43, who announced she is in remission from cancer in January, was radiant as she walked the red carpet at Royal ...

In civil and structural engineering, the word “safe” is often used as the ultimate benchmark of good design. If a structure does not collapse under design loads and meets code requirements, it is ...

Abstract: Metamaterials (MMs) are synthetic composite structures with superior properties not found in naturally occurring materials. MMs have gained massive attention over the last two decades ...

The construction of concrete-filled steel tube tied-arch bridges typically employs the “beam first and arch later” methodology. In this approach, tie beams are initially constructed on temporary ...

A 13-page engineering report in LaTeX that derives and determines the differential equation for the equation of the deflection curve of a simply supported beam under a uniform load and maximum ...

Abstract: This letter presents a wideband, low-cost, and low-profile circularly polarized (CP) beam-steerable folded reflectarray antenna (FRA) operating in the millimeter-wave (MMW) band. Inspired by ...

NASA’s Double Asteroid Redirection Test mission struck the 160-m moonlet asteroid Dimorphos (shown) in September 2022, changing its orbital period but generating a trail of debris called a surface ...