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 ...
27 VEEBR. 2004
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1186
Vaatamised
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 is activated when an anomaly occurs and the spacecraft loses its orientation towards the Sun. When this happens, the spacecraft automatically tries to point itself towards the Sun again by firing its attitude control thrusters under the guidance of an on-board Sun sensor.
Scientists could not re-establish contact for six weeks during which time many thought the mission had been lost. After six weeks, a signal was received from SOHO and it is currently still operating.
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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 ...
21 June
On 21 or 22 June every year, the 'solstice' occurs.For those who live in the northern hemisphere of Earth, on 21/22 June every year is the summer solstice, the year’s ...
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