“The launch of Explorer 1 marked the beginning of U.S. spaceflight, as well as the scientific exploration of space, which led to a series of bold missions that have opened humanity’s eyes to ...

Wednesday marks the United States’ 60th anniversary in space with the launch of Explorer 1. The success of the fast-tracked mission, which carried the country’s first satellite into orbit ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. World Space Week 2020 will celebrate the impact of satellites on humanity from Oct. 4 to ...

Explorer 1, as it would soon come to be called, was America’s first satellite. “The launch of Explorer 1 marked the beginning of U.S. spaceflight, as well as the scientific exploration of ...

So, the Explorer 1 launch "certainly salved the open wound; there's no doubt about that," former NASA Chief Historian Roger Launius told Space.com last fall. But the 30.7-lb. (13.9 kg) Explorer 1 ...

Approximately two hours after launch, it was confirmed that Explorer 1 had successfully completed its first orbit around the earth. Meisenheimer said it was a very exciting time and the people he ...

Maj. Gen. John Medaris was not amused. Nearly four months earlier, the Soviet Union had stunned the world with the launch of Sputnik 1, the first man-made satellite, on Oct. 4, 1957. Sputnik 2 ...

Not caught off guard so much as disappointed after a launch failure in December 1957, the United States launched its own satellite, Explorer 1, on February 1, 1958. Explorer 1 was seen as a point ...

Approximately two hours after launch, it was confirmed that Explorer 1 had successfully completed its first orbit around the earth. Meisenheimer said it was a very exciting time and the people he ...