Under Trump, NASA expanded business, international partnerships.

Reflecting on his time as acting U.S. defense secretary, Chris Miller wishes he had time to tackle the Pentagon’s acquisition system, and would use the F-35 as the case study of what not to do.

The Pentagon on Jan. 13 formally unveiled the Trusted Capital Digital Marketplace, a network for preapproved U.S. investor groups to match with technology startups deemed interesting enough to U.S. national security agencies to guard against Chinese or other foreign investment stakes.

Ask the editors: The C-5 and C-17 may seem dated and the A400M is small, but these aircraft still fulfill the needs of military missions.

The U.S. Air Force’s premier hypersonic weapon failed to complete a scheduled booster flight test in 2020.

The UK’s defense equipment plans continue to be unaffordable, auditors have warned, with estimates suggesting a shortfall of up to more than £17 billion ($23.1 billion) over the next 10 years.

As calls grow for President Donald Trump to resign or be removed, House Speaker Nancy Pelosi discussed with Gen. Mark Milley how to prevent Trump from gaining access to the authentication codes required for launching nuclear weapons.

Two new U.S. national security laws are shaping how the Pentagon does business in 2021.