Comet surface Tempel 1 contains ice

Photo: Nasa It is confirmed by the US Space Agency (NASA) after analyzing data collected from the Deep Impact probe. On July 4 last year, the ship crashed into comet Tempel 1 about 134 million kilometers from Earth.

The first evidence proving the presence of ice on comets reinforced the assumption that primitive Earth water might have come from comets.

Experts identified three thin ice bags on comets covering 28 square meters on a total of 117 square kilometers. About 6% of this ice is pure, the rest blends with dust.

Some astronomers argue that comets are witnesses to the formation of the solar system 4.6 billion years ago.