Many Twists and Turns: 25 Years Since STS-41 Sent Ulysses to the Sun (Part 1)

Ulysses drifts serenely above Earth in the moments after deployment on 6 October 1990, 25 years ago, this week. Shortly after this image was taken, the attached Inertial Upper Stage (IUS) and Payload Assist Module (PAM)-S boosters would propel the craft faster than any previous man-made object out of Earth’s gravitational clutches. Photo Credit: […]

To Follow After Knowledge: STS-41 and the Odyssey of Ulysses

Pictured in its horizontal position in Discovery’s payload bay, the circular dish antenna and Radioisotope Thermoelectric Generator (RTG) of Ulysses are clearly visible in this image. Photo Credit: NASA

Human hands have stretched far into the cosmos during our half-century of exploring the final frontier. Men and women have circled hundreds of miles above […]