Our roundup of the main aerospace and defense stories making the news this week.

The advanced air mobility market is beginning to differentiate by manufacturer, by mission and by timing.

Readers write about NASA’s Mars 2020 mission, Japan’s Aegis Ashore plan and Boeing’s midmarket airplane strategy.

Ask the Editors: Chinese military aircraft could benefit from Western engine technology, but there is a limit to what can be leveraged.

As public companies reported their latest quarterly results, one segment stood out for its near-universal positivity: space.

Ask the Editors: China is squeezing out foreign airframe makers but still relies on Western engine and onboard suppliers—for now.

Ask the Editors: Even if airframers do source less from China, it won’t mean they will turn to Western suppliers.

Ask the Editors: The global battle for airframe dominance is now a battle between Airbus and Boeing, but could Comac shake up the scene?