On Dec. 26, 1974, Salyut 4, a Soviet space station, launched into orbit around Earth. Discover more space history 👉 https://trib.al/vwrEIVa Salyut 4 was a small space station about the size of a school bus. It was almost identical to its sibling space station DOS 3, which failed to make it to orbit. Salyut 4 launched from the Baikonur Cosmodrome in Kazakhstan and entered an orbit 217 miles above the Earth. Three cosmonaut crews attempted to stay aboard Salyut 4, but they didn't all make it ther

Two Earth-like planets just discovered in the habitable zone near Teegarden's star, 12 light-years from Earth. The planets resemble the inner planets of our solar system, may have water, and are slightly heavier than Earth. Credit: @UniversityOfGottingen, @bosplanet | Space-Time

11K views · 280 reactions | On July 4, 1997, NASA's Mars Pathfinder...