Thursday May 24, 2018
Home Uncategorized Signs of a la...

Signs of a lake found on Mars

0
//
75
Source: Google images
Republish
Reprint
Source: Google images
Source: Google images

New York: Researchers have discovered evidence of an ancient lake on Mars that likely represents some of the last potentially habitable surface water ever to exist on the red planet.

Researchers at the University of Colorado at Boulder, examined an 18-square-mile chloride salt deposit in the planet’s Meridiani region near the Mars Opportunity rover’s landing site.

Large-scale salt deposits are considered to be evidence of evaporated bodies of water.

“This was a long-lived lake, and we were able to put a very good time boundary on its maximum age,” said Brian Hynek, a research associate at the Laboratory for Atmospheric and Space Physics (LASP) at CU-Boulder and lead author of the study.

“We can be pretty certain that this is one of the last instances of a sizeable lake on Mars,” Hynek emphsised.

Digital terrain mapping and mineralogical analysis of the features surrounding the deposit indicate that this one-time lake bed is no older than 3.6 billion years old, well after the time period when Mars is thought to have been warm enough to sustain large amounts of surface water planet-wide.

Planetary scientists believe that the solar system was formed approximately 4.6 billion years ago.

Based on the extent and thickness of the salt, the researchers estimate that the lake was only about eight percent as salty as the Earth’s oceans and therefore may have been hospitable to microbial life.

“By salinity alone, it certainly seems as though this lake would have been habitable throughout much of its existence,” Hynek dded.

The study was published in the journal, Geology.

(IANS)

Click here for reuse options!
Copyright 2015 NewsGram

Next Story

NASA Curiosity Rover Gets its Drilling Groove Back on Mars

It lets Curiosity drill using the force of its robotic arm, a little more like the way a human would drill into a wall at home

0
//
7
NASA Curiosity Rover Gets its Drilling Groove Back on Mars
NASA Curiosity Rover Gets its Drilling Groove Back on Mars. Pixabay

After a mechanical problem took NASA Mars rover Curiosity’s drill offline in December 2016, it has now successfully tested a new drilling method on the Red Planet, making a 50-millimetre deep hole in a target called “Duluth”, NASA has said.

Engineers working with the Curiosity Mars rover have been hard at work testing a new way for the rover to drill rocks and extract powder from them.

On May 20, that effort produced the first drilled sample on Mars in more than a year, NASA said in a statement on Wednesday.

The new technique, called Feed Extended Drilling, keeps the drill’s bit extended out past two stabiliser posts that were originally used to steady the drill against Martian rocks.

It lets Curiosity drill using the force of its robotic arm, a little more like the way a human would drill into a wall at home.

“The team used tremendous ingenuity to devise a new drilling technique and implement it on another planet,” said Curiosity Deputy Project Manager Steve Lee of NASA’s Jet Propulsion Laboratory in Pasadena, California.

Representational image.
Representational image. Pixabay

“Those are two vital inches of innovation from 60 million miles away. We’re thrilled that the result was so successful,” Lee said.

Drilling is a vitally important part of Curiosity’s capabilities to study Mars.

Inside the rover are two laboratories that are able to conduct chemical and mineralogical analyses of rock and soil samples.

The samples are acquired from Gale Crater, which the rover has been exploring since 2012.

“We’ve been developing this new drilling technique for over a year, but our job isn’t done once a sample has been collected on Mars,” said JPL’s Tom Green, a systems engineer who helped develop and test Curiosity’s new drilling method.

Also Read: NASA Probe to ‘Touch’ the Sun Will Carry 1.1 mn Names

“With each new test, we closely examine the data to look for improvements we can make and then head back to our test bed to iterate on the process.”

There’s also the next step to work on — delivering the rock sample from the drill bit to the two laboratories inside the rover.

As soon as this Friday, the Curiosity team will test a new process for delivering samples into the rover’s laboratories, NASA said. (IANS)

Next Story