All you need to know about the new discovery scientists NASA

On September 24, the Internet rumors that in the Monday, September 28, NASA announced the high-profile discoveries related to the Red Planet. The rumors were confirmed, and, together with a record of the press conference, NASA edition of Nature Geosciences published study according to which there is liquid water on Mars.

The existence of ice on Mars, scientists had known for a long time. Moreover, the data on the availability of water in the chemical state already overgrown jokes among space researchers. Curiosity, which runs on the surface of Mars for three years, also confirmed the existence of water at a certain depth.

The main question asked ourselves NASA scientists at this time: ever ice melts? The answer to this question could confirm or refute the common theory that about four million years ago on Mars, there was a huge ocean. Confirmation of his hypothesis, scientists have found in a strange dark currents can be seen in photographs of the surface of the Red Planet.

These bands were first discovered by research vessels in 2010 and were dark and narrow - about five meters wide. During warmer months, they increased in width and becomes longer in the cold, on the contrary, decreased. This fact has prompted scientists on the assumption that the creation of such bands may participate salt water. Furthermore, the temperature of different seasons on Mars correspond to the putative temperatures at which water could form a similar band.

Typically, the temperature on Mars is around -62,2 ° C, but in the warm season of the year near the equator, it increases to 21 ° C. This comfortable temperature for flows which flow on hillsides, and the presence in them perchlorates reduce the critical freezing point. In the most severe cold, these streams are converted into residual salt deposits.

A new study published today Nature Geosciences edition, provides direct evidence that liquid water on Mars does exist. Using image spectrometers research ships, scientists have studied the chemical composition of the bands putative salty streams. Infrared spectrometers showed that dark stripes actually consist of hydrated salts, in a crystal structure where there molecular water.

The presence of water gives all the more reason to search for microbial life on Mars.

We found the water there are three possible sources:

1. Perchlorate can be condensed from the ambient air when Mars particularly humid.
2. Water could come from an underground reservoir of the ice, which changes its state when the contact with salts.
3. The required amount of water to form a salt fluxes can provide a subterranean aquifer.

Whatever it was, today, scientists led irrefutable evidence of the existence of liquid water on Mars. Water is closely connected with the formation of life on Earth, and this gives confidence that somewhere nearby, in our solar system, there are extraterrestrial organisms.