
The task of keeping the experimental payload near the 1.8 degrees kelvin fell to a vacuum-jacketed device called a dewar.

Measuring 5 meters long and 1.6 meters in diameter, the fully integrated Gravity Probe B spacecraft was a remarkable example…

To turn Schiff’s idea into a reality, the Gravity Probe B team needed to invent and verify several new technologies…

The early decades of development saw most of the work in the areas of concept development, technology design, and prototype…

One of the most important aspects of Gravity Probe B (GP-B) was a process longtime Principle Investigator, Dr. Francis Everitt…

Tropical Storm Cristobal nearing southeastern Louisiana.

A wispy “aurora australis” intersects with the Earth’s airglow.

The “aurora australis” and a starry sky above the Indian Ocean

NASA astronauts Doug Hurley (foreground) and Bob Behnken are pictured briefing mission controllers.