The 1927 Crimean earthquakes occurred on June 26 and September 11-12, 1927http://en.wikipedia.org/wiki/1927_Crimean_earthquakes
On 26 June 1886, a French chemist Ferdinand Frederick Henri Moissan reported the isolation of elemental fluorine.http://astronomy.activeboard.com/t8000513/fluorine/Pied Piper of Hamelin: On June 26, 1284, 130 children were lost at the place of execution near the koppen.http://en.wikipedia.org/wiki/Pied_Piper#Fifteenth-century_Lueneburg_manuscript
The Strangford megalithic stone was erected on 26 June 1999http://astronomy.activeboard.com/t54180453/strangford-megalithic-stone/The Glashütte Observatory opened on 26 June, 1910.http://en.wikipedia.org/wiki/Glash%C3%BCtte_ObservatoryOn June 26, 1909 the London Science Museum, as an independent entity, came into existencehttp://en.wikipedia.org/wiki/Science_Museum_%28London%29
The Focke-Wulf Fw 61, often considered the first practical functional helicopter, was first flown in 1936. https://en.wikipedia.org/wiki/Focke-Wulf_Fw_61On June 26, 2003, NASA's Helios Prototype aerial vehicle broke up and fell into the Pacific Ocean http://astronomy.activeboard.com/t43587474/helios-prototype/
The Vanguard SLV 2 was launched on the 26th June 1958http://en.wikipedia.org/wiki/Project_VanguardOn 26 June 1973, 9 people were killed by an explosion of Cosmos-3M rocket, ready for launch at the Plesetsk Cosmodrome.http://en.wikipedia.org/wiki/Cosmos-3M#AccidentsThe OrbView-3 satellite was launched in 2003http://en.wikipedia.org/wiki/Orbview#OrbView-3Arabsat 5A and COMS 1 satellite were launched in 2010http://astronomy.activeboard.com/t36327272/arabsat-5a-satellite/
William Arthur Pailes (Colonel, USAF) (born June 26, 1952) is a former USAF astronaut http://en.wikipedia.org/wiki/William_A._PailesBernard Anthony Harris, Jr. (born June 26, 1956 in Temple, Texas) is a former NASA astronaut. http://en.wikipedia.org/wiki/Bernard_A._Harris,_Jr.Pavel Ivanovich Belyayev (June 26, 1925 - January 10, 1970), was a Soviet fighter pilot http://en.wikipedia.org/wiki/Pavel_BelyayevWilhelm Emil Messerschmitt (June 26, 1898 - September 15, 1978) was a German aircraft designer and manufacturer. http://en.wikipedia.org/wiki/Willy_MesserschmittGeorg Brandt (26 June 1694 - 29 April 1768) was a Swedish chemist and mineralogist who discovered cobalt http://en.wikipedia.org/wiki/Georg_BrandtStewart Ainsworth (born 26 June 1951) is a British archaeological investigator, who is regularly seen on Time Teamhttp://en.wikipedia.org/wiki/Stewart_AinsworthWilliam Thomson, 1st Baron Kelvin (26 June 1824 - 17 December 1907) was a mathematical physicisthttp://en.wikipedia.org/wiki/William_Thomson,_1st_Baron_KelvinRobert Coleman Richardson (June 26, 1937 - February 19, 2013) was an American experimental physicisthttp://en.wikipedia.org/wiki/Robert_Coleman_RichardsonLyman Strong Spitzer, Jr. (June 26, 1914 - March 31, 1997) was an American theoretical physicist and astronomer http://en.wikipedia.org/wiki/Lyman_SpitzerDavid Morrison is director of the Carl Sagan Centre for Study of Life in the Universe at the SETI Institutehttp://en.wikipedia.org/wiki/David_Morrison_(astrophysicist)Frank Scott Hogg (June 26, 1904 - January 1, 1951) pioneered in the study of spectrophotometry of stars and of spectra of comets.http://en.wikipedia.org/wiki/Frank_Scott_Hogg
John Wall (26 June 1932 - 27 January 2018) was an English amateur astronomerhttps://en.wikipedia.org/wiki/John_Wall_(inventor)Charles Messier (26 June 1730 - 12 April 1817) was a French astronomerhttp://astronomy.activeboard.com/t36729930/charles-messier/
Placemarker
NGC 2276 was discovered by German astronomer Friedrich August Theodor Winnecke on the 26th June 1876. http://astronomy.activeboard.com/t57922973/ngc-2276/NGC 5959 was discovered by American astronomer Ormond Stone on the 26th June 1886.http://astronomy.activeboard.com/t57922965/ngc-5959/NGC 6916 was discovered by American astronomer Lewis Swift on the 26th June 1887.http://astronomy.activeboard.com/t57922956/ngc-6916/
Exoplanet HAT-P-9b was discovered by the transit method on June 26, 2008http://en.wikipedia.org/wiki/HAT-P-9bFranz von Gruithuisen, on 26 June 1819, reported seeing "two small spots...on the Sun, round, black and unequal in size"http://en.wikipedia.org/wiki/Vulcan_(hypothetical_planet)#The_search_for_Vulcan
Mars was captured by the Hubble Space Telescope on 26 June 2001http://hubblesite.org/newscenter/archive/releases/2001/24/image/a/
The discovery of Surtur a natural satellite of Saturn, was announced on June 26, 2006http://en.wikipedia.org/wiki/Surtur_(moon)The discovery of Jarnsaxa 1 a natural satellite of Saturn, was announced on June 26, 2006http://en.wikipedia.org/wiki/Jarnsaxa_(moon)The discovery of Greip a natural satellite of Saturn, was announced on June 26, 2006http://en.wikipedia.org/wiki/Greip_(moon)The discovery of Loge a natural satellite of Saturn, was announced on June 26, 2006http://en.wikipedia.org/wiki/Loge_(moon)The discovery of S/2006 S 1 a natural satellite of Saturn, was announced on June 26, 2006http://en.wikipedia.org/wiki/S/2006_S_1The discovery of S/2006 S 3 a natural satellite of Saturn, was announced on June 26, 2006http://en.wikipedia.org/wiki/S/2006_S_3A telescopic comet was discovered by Dr. Peters on the 26th June 1846http://astronomy.activeboard.com/t54156154/peters-comet/
Pi-Cetids meteor shower peak in constellation Cetushttp://astronomy.activeboard.com/t28919881/pi-cetids-meteor-shower/
MeteoritesThe Dolgovoli (Stone L6 chondrite) meteorite fell in Volyn, Ukraine, on the 26th June, 1864.http://astronomy.activeboard.com/t43587501/dolgovoli-meteorite/The Lua (Stone L5 chondrite) meteorite fell in Rajasthan, India, on the 26th June, 1926. A large stone (8632g) fell at Lua.http://astronomy.activeboard.com/t43587510/lua-meteorite/The Hotse (Stone L6 chondrite) meteorite fell in Shandong, China, on the 26th June, 1956. http://astronomy.activeboard.com/t43587526/hotse-meteorite/