Think the KC-X tanker program was messy? The forthcoming EELV procurement could make it look like a walk in the park.

NASA’s Messenger (MErcury Surface, Space ENvironment, GEochemistry and Ranging) spacecraft was the first to orbit Mercury. Its mission was to orbit Mercury for one Earth year, but it stayed for more than four years, making new scientific discoveries about the planet closest to the Sun.

Bickering between Republicans and Democrats over global warming issues may jeopardize funding for NASA’s climate-monitoring missions

Lockheed Martin, responding to market changes, is merging its military and commercial satellite manufacturing operations while upgrading the A2100 bus.

"Coffee: the finest organic suspension ever devised," according to European Space Agency astronaut Samantha Cristoforetti.

China’s ASAT tests have forced the Pentagon to funnel billions of dollars into new satellite architectures and defensive measures.

Our roundup of some of this week’s top stories in aerospace and defense.

Sierra Nevada is using its deep pockets to keep the Dream Chaser mini-space shuttle alive while it looks for paying customers.