3 September
1976: On 3 September 1976, the unmanned US spacecraft Viking II landed on Mars and took its first pictures of the surface.Its twin, Viking I, had been the first to ...
27 FEB. 2004
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2003: On 4 September 2003, astronomers released an image taken by the NASA/ESA Hubble Space Telescope's Advanced Camera for Surveys (ACS). Amid a backdrop of far-off galaxies, the dusty spiral, NGC 3370 was shown. Nearly 10 years earlier NGC 3370, in the constellation Leo, hosted a bright exploding star.
In November 1994, the light of a supernova in nearby NGC 3370 reached Earth. This stellar outburst briefly outshone all of the thousands of millions of other stars in its galaxy. Although supernovae are common, with one exploding every few seconds somewhere in the universe, this one was special. Designated SN 1994ae, this supernova was one of the nearest and best observed supernovae since the advent of modern digital detectors.
The Hubble image confirmed that the intricate spiral arm structure was spotted with hot areas of new star formation.
Mediemodal
2 September
1908: On 2 September 1908, Nikolay Aleksandrovich Kozyrev was born.Kozyrev was a Russian astronomer who claimed to have discovered volcano-like activity on the Moon. His sightings of apparent gaseous emissions ...
1 September
1902: On 1 September 1902, Dirk Brouwer was born.Brouwer was a Dutch-born US astronomer and geophysicist known for his achievements in celestial mechanics, especially for his pioneering application of high-speed ...
31 August
1979: On 31 August 1979, Comet Howard-Koomur-Michels collided with the Sun. This was the first recorded instance of a comet hitting the Sun. The energy released by the event was ...
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