Scientists detect water vapor coming from Mars

Scientists detect water vapor coming from Mars

The ESA-Roscosmos ExoMars Trace Gas Orbiter studies water vapor and its components as it rises through the atmosphere and into space. By looking specifically at the ratio of hydrogen to the heavier counterpart deuterium, the evolution of water loss over time can be traced. Credit: (C) ESA

Researchers said on Wednesday that they had observed that water vapor escaped high into the thin atmosphere of Mars and provided new clues as to whether the Red Planet could ever offer life.

The traces of ancient valleys and river channels indicate that liquid water once flowed over the surface of Mars. Today, the water is mostly trapped in the icebergs of the planet or buried underground.

But some of it evaporates, in the form of hydrogen leaking from the atmosphere, according to new research compiled in the journal. Scientific progress by two scientists at the British University.

They detected the vapor by analyzing the light moving through the atmosphere of Mars using a tool called Nadir and Occultation for Mars Discovery.

The device travels aboard the ExoMars Trace Gas Orbiter, a joint mission between the European Space Agency and the Russian Roscosmos.

“This fantastic instrument gives us a glimpse of water isotopes never before seen in the atmosphere of Mars as a function of time and place,” said Manish Patel, senior lecturer in planetary sciences at the Open University.

“Measuring water isotopes is an important element in understanding how Mars as a planet has lost its water over time, and therefore how the habitability of the planet has changed throughout its history,” he said.

Scientists detect water vapor coming from Mars

The image is simplified to indicate very broadly one possible way in which hydrogen chloride is generated; there are probably additional avenues for the chemical reactions that may play out as well, perhaps with other trace gases that ExoMars has not yet discovered. Credit: (C) ESA

It’s been a busy week for Mars research.

On Wednesday, Chinese Tianwen-1 probe entered the planet’s orbit after being launched in southern China last year, in the latest advance for Beijing’s ambitious space program.

A day earlier, the United Arab Emirates’ “Hope” probe had also successfully entered the orbit of Mars, making history as the Arab world’s first interplanetary mission.


Chinese spacecraft approaches Mars, 2nd world in two days


More information:
Oleg Korablev et al. Transient HCl in the atmosphere of Mars, Scientific progress (2021). DOI: 10.1126 / sciadv.abe4386

© 2021 AFP

Quotation: Scientists detect water vapor from Mars (2021, February 10) detected February 11, 2021 from https://phys.org/news/2021-02-scientists-vapour-emanating-mars.html

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