Transportation

Replacing two 50-car trains with a single 100-car train increases the odds of derailment by 11 percent, according to a new risk analysis

New electric-powered, vertical-lift aircraft are rising to the challenge of delivering clean and cheap air taxi services

The autonomous trucking industry says its self-driving vehicles can cut carbon emissions by reducing fuel use, though some groups have raised safety questions

A multimillion-dollar digital camera could revolutionize astronomy. But first it needs to climb a mountain halfway around the globe

With a new EPA rule aiming to reduce carbon emissions from the biggest class of trucks in the U.S., companies are experimenting with overhead cables and wireless road charging

Cargo ships, like the one that caused the Baltimore bridge to collapse, are getting dangerously big

A large container ship “totally removed” a critical pier from Baltimore’s Francis Scott Key Bridge

New materials would help the cars of the future survive cold snaps and other climate disruptions

These boarding methods are more efficient, but they come at a cost

How salt makes roads safer in winter—and why new methods could be better for the environment

The Biden administration is doling out more money for charging infrastructure because range anxiety is considered a major challenge to Americans’ widespread adoption of electric cars

Self-driving cars could give people who live outside big cities and are unable to drive more mobility, but the technology must still overcome some hurdles