Double Arch, at 112 feet, is the tallest arch in the park. At 144 feet in length, it's also the second-longest arch in the park. Luckily, this natural wonder is easy to reach. The half-mile trail ...

Hikers will also have to climb up a ladder built into the rock – which leads to an expansive bowl-shaped area – and also pass under Bowtie Arch, which essentially looks like a window to the ...

Composite metal foam performs equally to or better than most conventional metals used in shielding materials, while weighing significantly less, according to new research. By Margherita Bassi ...