The star was able to observe four different areas of the celestial sphere due to the effect of gravitational lensing.
An international team of scientists has documented the explosion of the same supernova, observed in four different areas of the celestial sphere. Relevant studies published in the journal Astrophysical Journal Letters and Science, and briefly about them, reports the national laboratory of Lawrence in Berkeley (USA).
Shone iPTF16geu (SN 2016geu) located at a distance of about four billion light-years from Earth. It is a subcategory Ia supernova resulting from the explosion of white dwarfs. iPTF16geu discovered on 5 September 2016.
The star was able to observe four different areas of the celestial sphere due to the effect of gravitational lensing. Thanks to him, if between the star and the observer is a massive object, such as a large galaxy, the path of the rays from the sun is bent, which leads to the reproduction of visible images by an observer of the stars.
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