The failure to act by Congress could cause airport lines and other disruptions across the travel industry during a busy holiday travel period.

© Joe Raedle/Getty Images

Here’s why it’s hard to distinguish objects in the night sky.

Incidents like these require quick, clear communication from the government. That’s not what people are getting.

© Photo Illustration by The New York Times. Photo: Brian Glenn, via Associated Press

Incidents like these require quick, clear communication from the government. That’s not what people are getting.

European carriers are enduring higher costs because they have to avoid Russian airspace, while a sluggish economy and geopolitical tensions are hurting business travel to China.

While observational flights have improved forecasts for many storms in the Americas, such flights have been far fewer for storms that have hit Asia.