Dragon Storm (dubbed so in September 2004) was a large storm in Saturn's southern hemisphere.http://en.wikipedia.org/wiki/Dragon_Storm_(astronomy)
First light for the Walter Baade telescope occurred on September 15, 2000.https://en.wikipedia.org/wiki/Magellan_Telescopes
A total lunar eclipse took place on September 15, 1913.http://en.wikipedia.org/wiki/September_1913_lunar_eclipseThe Eleusinian Mysteries were ceremonies held every year for the cult of Demeter and Persephone http://en.wikipedia.org/wiki/Eleusinian_Mysteries
First light for the Baade Magellan Telescope was on September 15, 2000http://en.wikipedia.org/wiki/Magellan_TelescopesThe Battle of Flers-Courcelette took place on 15 September, 1916http://en.wikipedia.org/wiki/Battle_of_Flers-CourceletteBattle of Britain Day is the name given to the aerial battle that took place on 15 September 1940https://en.wikipedia.org/wiki/Battle_of_Britain_DayOn this day in 1835, HMS Beagle (second voyage) arrived at the Galápagos Islands.http://en.wikipedia.org/wiki/Second_voyage_of_HMS_Beagle#Gal.C3.A1pagos_Islands
The Moscow-based Group for the Study of Reactive Motion (GRID) was created on September 15, 1931.https://en.wikipedia.org/wiki/Group_for_the_Study_of_Reactive_Motion
HMS Resolution, Britain's 1st nuclear submarine was launched on the 15 September 1966.https://en.wikipedia.org/wiki/HMS_Resolution_(S22)
The Zond 5 was launched from a Tyazheliy Sputnik (68-076B) on the 15 September 1968http://en.wikipedia.org/wiki/Zond_5
Soyuz 22 was launched on the 15th September 1976http://en.wikipedia.org/wiki/Soyuz_22The Upper Atmosphere Research Satellite (UARS) was was deployed from STS-48 on 15 September 1991http://en.wikipedia.org/wiki/Upper_Atmosphere_Research_SatelliteVideo taken during mission STS-48 on September 15, 1991 shows a flash of light and several UFOshttp://en.wikipedia.org/wiki/UFO_sightings_in_outer_space#1991Lost in Space is a science fiction TV series first aired on September 15, 1965http://astronomy.activeboard.com/t44992879/lost-in-space/"Charlie X" is a first season episode of the science fiction television series Star Trek first broadcast on September 15, 1966. http://en.wikipedia.org/wiki/Charlie_XAmok Time" is the second season premiere episode of the original science fiction television series Star Trek.http://en.wikipedia.org/wiki/Amok_TimeOn 15 September 2008, NASA's Fermi Gamma-ray Space Telescope detected gamma-ray burst 080916Chttp://en.wikipedia.org/wiki/GRB_080916CMariner 4 probably encountered debris from comet D/1895 Q1 (Swift) on September 15, 1967http://science1.nasa.gov/science-news/science-at-nasa/2006/23aug_mariner4/
People
Marco Polo (September 15, 1254 - January 9, 1324) was a Venetian merchanthttp://en.wikipedia.org/wiki/Marco_PoloSir Mokshagundam Visveswaraiah (15 September 1860 - 14 April 1962) was a notable Indian engineerhttp://en.wikipedia.org/wiki/Sir_M._VisvesvarayaJean-Sylvain Bailly (15 September 1736 - 12 November 1793) was a French astronomerhttp://en.wikipedia.org/wiki/Jean-Sylvain_Bailly
Anna Winlock (born September 15, 1857 in Cambridge, Massachusetts; died 1904) was an American astronomer http://en.wikipedia.org/wiki/Anna_Winlock
Michiel Daniel Overbeek (15 September 1920 - 19 July 2001) was a South African amateur astronomerhttp://en.wikipedia.org/wiki/Michiel_Daniel_OverbeekJean-Pierre Serre (born 15 September 1926) is a French mathematicianhttp://en.wikipedia.org/wiki/Jean-Pierre_SerreOskar Benjamin Klein (September 15, 1894 - February 5, 1977) was a Swedish theoretical physicist.http://en.wikipedia.org/wiki/Oskar_KleinMurray Gell-Mann (born September 15, 1929) is an American physicisthttp://en.wikipedia.org/wiki/Murray_Gell-MannEdward Bouchet (1852 - 1918) was the first African-American to earn a Ph.D. from an American universityhttp://en.wikipedia.org/wiki/Edward_BouchetNorman Richard Spinrad (born September 15, 1940) is an American science fiction authorhttp://en.wikipedia.org/wiki/Norman_SpinradPhillip (Phil) John Lamason (15 September 1918 - 19 May 2012) was a pilot in the Royal New Zealand Air Forcehttp://en.wikipedia.org/wiki/Phil_LamasonMiroslaw Hermaszewski (born September 15, 1941), is a retired Polish Air Force officer. http://en.wikipedia.org/wiki/Miros%C5%82aw_Hermaszewski
Richard Alfred Farrimond (born 15 September 1947) is a British engineer, former army officer and astronaut candidate.http://en.wikipedia.org/wiki/Richard_Farrimond
NGC discovered
NGC 678 is an edge-on spiral galaxy discovered by William Herschel on the 15th September 1784.http://astronomy.activeboard.com/t58551675/ngc-678/NGC 680 is an elliptical galaxy discovered by William Herschel on the 15th September 1784.http://astronomy.activeboard.com/t58551670/ngc-680/NGC 697 is a barred spiral galaxy discovered by William Herschel on the 15th September 1784.http://astronomy.activeboard.com/t58551662/ngc-697/NGC 816 is a compact galaxy discovered by Edouard Stephan on the 15th September 1871.http://astronomy.activeboard.com/t58551656/ngc-816/NGC 3538 is a double star discovered by Heinrich Louis d'Arrest on the 15th September 1866.http://astronomy.activeboard.com/t58551606/ngc-3538/NGC 6874 is an open star cluster discovered by William Herschel on the 15th September 1792.http://astronomy.activeboard.com/t58551603/ngc-6874/NGC 6888 is an emission nebula discovered by William Herschel on the 15th September 1792.http://astronomy.activeboard.com/t7577372/ngc6888/NGC 7148 is a double star discovered by Heinrich Louis d'Arrest on the 15th September 1865.http://astronomy.activeboard.com/t58551593/ngc-7148/NGC 7149 is a lenticular galaxy discovered by Heinrich Louis d'Arrest on the 15th September 1865.http://astronomy.activeboard.com/t58551589/ngc-7149/NGC 7303 is a barred spiral galaxy discovered by John Herschel on the 15th September 1828. http://astronomy.activeboard.com/t58551586/ngc-7303/NGC 7678 is a face-on barred spiral galaxy discovered by William Herschel on the 15th September 1784.http://astronomy.activeboard.com/t58551580/ngc-7678/
Asteroids discovered
Asteroid (47) Aglaja was discovered by Robert Luther on September 15, 1857 from Düsseldorfhttp://en.wikipedia.org/wiki/47_Aglaja
Asteroid (373) Melusina was discovered by Auguste Charlois on September 15, 1893 in Nice.http://en.wikipedia.org/wiki/373_Melusina
Asteroid (11083) Caracas was discovered on September 15, 1993 at the European Southern Observatory.http://en.wikipedia.org/wiki/11083_Caracas
Meteorites
The Gambat (L6) meteorite fell in Sind, Pakistan, on the 15th September 1897.http://astronomy.activeboard.com/t44992796/gambat-meteorite/
The Baroti (L6) meteorite fell in Himachal Pradesh, India, on the 15th September 1910.http://astronomy.activeboard.com/t44992808/baroti-meteorite/
The Carancas (H4-5) meteorite fell in Puno, Peru, on the 15th September 2007.http://astronomy.activeboard.com/t13526783/puno-meteorite/