On this day in 1968 Soviet astronaut (“cosmonaut”) Yuri Gagarin was killed in an accident. He was famous for being the first man launched into space (12 April 1961). Gaga...
On this day American Mary Mallon was placed in quarantine for life. She was, in fact, the first person in the U.S. who was found to carry dangerous disease typhoid, even...
Titan is larger than even the planet Mercury. Its surface area is 83 million square kilometers, approximately equal to the territory of Europe, Asia and Africa put togeth...
On this day in 2001 the Russian space station Mir was taken out of the Earth’s orbit deliberately and in a controlled manner. Interestingly, the Mir station is the larges...
On this day the Russian astronaut (“cosmonaut”) Valeri Polyakov ended his space mission after spending a record-long time in space: 437 days and 18 hours. He spent that t...
On this day Nikola Tesla received a patent for the wireless transmission of electricity. He thought that the need for transmission lines and power lines would thus be eli...
Einstein’s theory explains the gravitational force to be a result of the curvature of space and time. On this day Annalen der Physik, Einstein’s general theory of relativ...
On this day, for the first time in the history of mankind, an astronaut conducted a spacewalk, i.e. left the spacecraft and stayed there wearing only a space suit. This h...