5 October
1923: On 5 October 1923, the US astronomer Edwin Hubble identified the first Cepheid variable star in the Andromeda galaxy. This proved that the galaxy was not part of the ...
27 FEB. 2004
publication date
967
Views
1990: On 6 October 1990, the ESA/NASA Ulysses spacecraft was launched on board US Space Shuttle Discovery from Cape Canaveral, USA.
Ulysses is a ESA/NASA mission to study the poles of the Sun and interstellar space above and below the poles. The spacecraft's booster rockets fired to send Ulysses on its way to Jupiter, where it used the giant planet's gravity to gain more momentum to swing out of the ecliptic plane and onward to the polar regions of the Sun.
Media modal
4 October
1957: On 4 October 1957, the Soviet Union launched Sputnik 1, the world's first artificial satellite, about the size of a football and taking about 98 minutes to orbit Earth ...
3 October
1932: On 3 October 1932, Maximilian (Max) Wolf died.Wolf was a German astronomer who founded and directed the Königstuhl Observatory. He used wide-field photography to study the Milky Way and ...
2 October
1920: On 2 October 1920, Giuseppe (Bepi) Colombo was born.He was an Italian mathematician and engineer whose bald head and grey moustache were familiar in the corridors of both ESA ...
Share this page
stay updated
Subscribe to our newsletter to receive the latest news, mission updates, and exclusive insights directly in your inbox. Be the first to know about our upcoming projects and breakthroughs.