Wednesday March 20, 2019
Home Lead Story Scientists Cl...

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.

0
//
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.

solar system
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

Also Read: More Science Careers: African School Of Physics on Mission To Educate New African Generation Through Traveling Program

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 Reveals First Person on Mars ‘is Likely to be a Woman’

NASA has come a long way since 1978, when the first six women joined NASA's astronaut corps

0
NASA, mars
NASA will also have its first all-female spacewalk at the end of the month, when astronauts Anne McClain and Christina Koch will get to float around in space. The spacewalk will last about seven hours, according to the US space agency. Pixabay

The first person on Mars is ‘likely to be a woman’, NASA Administrator Jim Bridenstine has said.

“It’s likely to be a woman, the first next person on the Moon. It’s also true that the first person on Mars is likely to be a woman,” CNN cited Bridenstine as saying on a science and technology radio talk show “Science Friday”.

The NASA administrator did not identify a specific person but said women are at the forefront of the agency’s upcoming plans.

NASA will also have its first all-female spacewalk at the end of the month, when astronauts Anne McClain and Christina Koch will get to float around in space. The spacewalk will last about seven hours, according to the US space agency.

NASA, mars
NASA has come a long way since 1978, when the first six women joined NASA’s astronaut corps. Currently, women comprise 34 per cent of its active astronauts, according to the agency. Pixabay

“So these are great days. We have the first all-female spacewalk happening this month at the end of March, which is of course, National Women’s Month,” Bridenstine said.

Both McClain and Koch were part of the 2013 astronaut class, half of which were women. They came from the second largest applicant pool NASA has ever received — more than 6,100. The most recent class of flight directors was also 50 per cent women, NASA said.

 

ALSO READ: NASA’s Future Scientists Would Likely Be Better Equipped To Study The Lunar Material

NASA has come a long way since 1978, when the first six women joined NASA’s astronaut corps. Currently, women comprise 34 per cent of its active astronauts, according to the agency.

“NASA is committed to making sure we have a broad and diverse set of talent and we’re looking forward to the first woman on the moon,” Bridenstine said. (IANS)