Could the galaxy’s third confirmed interstellar visitor be an alien probe? The now christened comet 3I/ATLAS is sweeping past Earth at a safe distance of about 170 million miles, and while speculation ...

Working within a constrained urban environment, crews built a durable, context-sensitive underground rail station using prefabricated concrete elements and applying long-span bridge engineering ...

Transforming one of Sweden’s busiest railway arteries—without pausing a single day of operation—was a challenge for the Fyrspåret Lund–Arlöv project team. Stretching 11 km between Lund and Arlöv, the ...

Is there an Outer SpaceX? With 3I/ATLAS set to fly by Earth in just over a week, experts continue to speculate over its origins. Harvard Scientist Avi Loeb believes that if aliens, the comet wouldn’t ...