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99942 Apophis (provisional designation 2004 MN 4) is a near-Earth asteroid and a potentially hazardous object, 450 metres (1,480 ft) by 170 metres (560 ft) in size, [3] that caused a brief period of concern in December 2004 when initial observations indicated a probability of 2.7% that it would hit Earth on Friday, April 13, 2029.
In a bit of ominous news befitting a Friday the 13th: It turns out that the asteroid Apophis could have a very small chance of colliding into Earth in five years, when it is expected to make a ...
It's hard to know just exactly what Apophis looks like, as scientists do not yet have images of it. But radar observations have suggested that Apophis is shaped roughly like a peanut – a ...
Ramses, or Rapid Apophis Mission for Space Safety, is a proposed ESA mission to a near-Earth asteroid 99942 Apophis.If approved, it is expected to be launched in April 2028, to arrive at Apophis in February 2029, before its closest approach to Earth.
English: The close approach of 99942 Apophis (previously better known by its provisional designation 2004 MN 4) to the Earth and Moon on Friday, April 13, 2029 The small white bar indicates uncertainty in the range of possible positions.
ˈ f ɒ f /, Coptic: Ⲁⲫⲱⲫ, romanized: Aphōph) [1] or Apophis (/ ə. ˈ p ɒ. f ɪ s /; Ancient Greek: Ἄποφις, romanized: Ápophis), is the ancient Egyptian deity who embodied darkness and disorder, and was thus the opponent of light and Maat (order/truth). Ra was the bringer of light and hence the biggest opposer of Apep.
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A second example was the 2013 ESA Herschel Space Observatory follow-up observations of 99942 Apophis, which showed it was 20% larger and 75% more massive than previously estimated. [65] However such follow-ups are rare. The size estimates of most near-Earth asteroids are based on visible light only. [66]