Stephen Clark

Starship had already flown 99 percent of the way to low-Earth orbit. Monday's flight added the last bit.

NASA's PRIMA mission will use spare parts from Webb to do major science at a lower cost.

There was absolutely a time where we were trying to make everyone happy."

The United States now has on-orbit space control weapons capable of defending the joint force."

Europe is looking inward, and perhaps to China, as the White House tries to cancel some NASA partnerships.

Two of Europe's leading launch startups announced new fundraising this week.

NASA's cost estimate for SR-1 Freedom is $2.1 billion, but that doesn't include the helicopters.

We would need over half a million 4K TVs to fully display the single Roman image from our largest survey."

SpaceX aims to launch Starship from Florida by the end of the year. 2027 seems more likely.

Taiwan's effort to develop its own satellite launcher hit a setback this week.