25 June
1998: On 25 June 1998, during routine maintenance operations, ground controllers lost contact with the ESA/NASA SOHO spacecraft. The satellite went into Emergency Sun Re-acquisition (ESR) mode. The ESR mode ...
27 FEAB. 2004
Dáta foilsithe
1740
Amhairc
1730: On 26 June 1730, Charles Messier was born.
Messier was a French astronomer who discovered fifteen comets. He was the first to compile a systematic catalogue of 'M objects.' - the Messier Catalogue (1784) containing 103 star clusters, nebulae and galaxies. (In Messier's time a nebula was a term used to denote any blurry celestial light source.)
He established alphanumeric names for the objects (M1, M2, etc.) - this notation continues to be used in astronomy today.
Modh meán
24 June
1975: On 24 June 1975 a Moon tremor, detected by the Lunar Seismic Network, was caused by a strike of Taurid meteors. Seismometers had been left on the Moon's surface ...
23 June
1901: On 23 June 1901, Otto Heckmann was born.Heckmann was a German astronomer noted for measuring stellar positions and his studies of relativity and cosmology. He also made notable contributions ...
22 June
1999: On 22 June 1999, a European team of scientists unveiled a discovery about our Sun - they had found a way of studying the hidden far side, allowing them ...
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