On 19 October 2017 the Pan-STARRS telescope in Hawaii detected a faint object racing through the inner solar system on a hyperbolic path, proving that it came from beyond. It was named 'Oumuamua, Hawaiian for 'scout'. It was elongated or flat, tumbling, and reddish, and it accelerated slightly as it left in a way not caused by gravity alone, which led to debate about its nature. A second interstellar visitor, comet 2I/Borisov, appeared in 2019, and the Hawaiian name was chosen to honour the discovery.
Before and after
- 1 October 2017Catalan independence referendum, 2017
- 1 October 20172017 Las Vegas shooting
- October 2017Rise of MeToo movement
- 12 October 2017Turkish military operation in Idlib Governorate
- 19 October 2017'Oumuamua is the first interstellar object seen in the solar system
- 27 October 2017Catalan declaration of independence
- 31 October 20172017 Lower Manhattan attack
- from 1 November 2017 to 30 November 2017Rise of Wikipedia Asian Month 2017
- from 28 December 2017 to 7 January 20182017–2018 Iranian protests
More in Universe & space
- 1 May 1949Discovery of Nereid
- 5 September 1977Launch of Voyager 1
- 5 March 1979Discovery of Thebe
- 8 July 1979Discovery of Adrastea
- 16 June 1989Discovery of Proteus
- 15 May 2005Discovery of Nix
The era
This moment belongs to the Contemporary world (1945 CE to today), the world since 1945. You can also browse everything in the 21st century.