The USSR’s ambitious space exploration plans foundered due to the lack of a viable rocket system. We’re almost four decades away from the collapse of the Soviet Union and the end of the Cold War.

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Maddy has a degree in ...

The Apollo-Soyuz Test Project brought Soviet cosmonauts and NASA astronauts together in the first international human spaceflight. A 1973 artist’s concept of the Apollo-Soyuz Test Project, with the ...

Venus, often referred to as Earth’s twin, is one of the most hostile places in the solar system. Its thick atmosphere traps heat and makes the planet extremely hot, while high pressure crushes ...

The USSR’s ambitious Mars mission was initially planned to launch in 1975, but it was never executed. During the Cold War, significant advancements occurred in the fields of science and technology as ...

"Soyuz and Apollo are shaking hands now!" Fifty years ago today (July 17), at 12:09 p.m. EDT (1609 GMT), history was made as two crewed spacecraft launched by two countries docked together in orbit ...