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Scientists Claim, Underground Lake System Likely Existed On Mars

Researchers said flow channels, pool-shaped valleys and fan-shaped sediment deposits seen in dozens of kilometers-deep craters in Mars' northern hemisphere would have needed water to form.

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NASA
Example of features identified in a deep basin on Mars that show it was influenced by groundwater billions of years ago. (NASA/JPL-Caltech/MSSS) VOA

Scientists say images of craters taken by European and American space probes show there likely once was a planet-wide system of underground lakes on Mars.

Data collected by NASA and ESA probes orbiting the red planet provide the first geological evidence for an ancient Martian groundwater system, according to a study by researchers in Italy and the Netherlands published in the Journal of Geophysical Research.

Francesco Salese, one of the scientists involved, said in an email Friday that the findings confirm earlier models and smaller-scale studies, and that the underground lakes may have been connected to each other.

NASA
Data collected by NASA and ESA probes orbiting the red planet provide the first geological evidence for an ancient Martian groundwater system. VOA

The notion of water on Mars has long fascinated scientists because of the possibility that the planet may have once harbored similar conditions to those that allowed life to develop on Earth. Patches of ice previously spotted on Mars provide tantalizing hints of a watery past for the arid world.

Researchers said flow channels, pool-shaped valleys and fan-shaped sediment deposits seen in dozens of kilometers-deep craters in Mars’ northern hemisphere would have needed water to form.

Co-author Gian Gabriele Ori said an ocean some scientists speculate Mars may once have had between three and four billion years ago could even have been connected to the underground lakes.

The researchers also saw signs of minerals such as clay on Mars that would have required long periods of exposure to water to form. Ralf Jaumann, a planetary scientist at the German Aerospace Center who wasn’t directly involved in the study, said such sites are a good starting point for future Mars landers to search for signs of ancient life.

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The researchers also saw signs of minerals such as clay on Mars that would have required long periods of exposure to water to form. Pixabay

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However Jack Mustard, a professor of geological sciences at Brown University who also wasn’t part of the study, questioned the paper’s claims, saying he didn’t see evidence of underground lakes in the data.

“But I am probably just a skeptical Martian,” he added. (VOA)

Next Story

NASA Failed to Trace Chandrayaan 2’s Vikram Lander on Lunar Surface

On July 22, the Rs 978-crore Chandrayaan-2 was launched into space by India's heavy lift rocket Geosynchronous Satellite Launch Vehicle-Mark III

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NASA, Chandrayaan 2, Vikram Lander
A NASA scientist said the spacecraft failed to trace Vikram because of two reasons -- one, Vikram is located outside the area the US agency photographed, second, because it's lying in a shadowed part of the moon. Wikimedia Commons

US Space agency NASA has once again failed to trace Chandrayaan 2’s Vikram lander on the lunar surface.

A NASA spacecraft clicked photos of the landing site of Vikram earlier this month, but couldn’t capture the lander.

A NASA scientist said the spacecraft failed to trace Vikram because of two reasons — one, Vikram is located outside the area the US agency photographed, second, because it’s lying in a shadowed part of the moon.

On July 22, the Rs 978-crore Chandrayaan-2 was launched into space by India’s heavy lift rocket Geosynchronous Satellite Launch Vehicle-Mark III (GSLV Mk III) in a text book style.

NASA, Chandrayaan 2, Vikram Lander
A NASA spacecraft clicked photos of the landing site of Vikram earlier this month, but couldn’t capture the lander. Wikimedia Commons

The Chandrayaan-2 spacecraft comprised three segments — the Orbiter (weighing 2,379 kg, eight payloads), Vikram (1,471 kg, four payloads) and Pragyan (27 kg, two payloads).

After five earth-bound orbit raising activities, Chandrayaan-2 was inserted into the lunar orbit. On September 2, Vikram separated from the orbiter. It made a historic landing attempt on September 7.

According to NASA, Vikram attempted a landing on a small patch of lunar highland smooth plains between Simpelius N and Manzinus C craters.

This event was India’s first attempt at a soft landing on the moon.

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The US agency said Vikram’s targeted landing site was located about 600 kilometres (370 miles) from the south pole in a relatively ancient terrain (70.8AoS latitude, 23.5AoE longitude).

According to NASA, Vikram had a hard landing and the precise location of the spacecraft in the lunar highlands has yet to be determined. (IANS)