Never miss a story

Get subscribed to our newsletter


×
These rock layers recorded that change in great detail. Pixabay

Mars had drier and wetter eras before drying up completely about three billion years ago, says a new study which suggests that the Red Planet did not dry up all at once. The findings are based on data from NASA’s Curiosity Mars rover which continues to explore the base of Mount Sharp on the Red Planet.

“A primary goal of the Curiosity mission was to study the transition between the habitable environment of the past, to the dry and cold climate that Mars has now,” said Roger Wiens, a coauthor on the paper and scientist at Los Alamos National Laboratory, where he is on the ChemCam team. “These rock layers recorded that change in great detail,” Wiens said.


Follow NewsGram on LinkedIn to know what’s happening around the world.

ChemCam is the rock-vaporizing laser that sits on the mast of the Curiosity rover and analyses the chemical composition of Martian rocks. William Rapin, a researcher with the French National Centre for Scientific Research (CNRS), led the study published in the journal Geology. Using the long-range camera on ChemCam to make detailed observations of the steep terrain of Mount Sharp, a team including Wiens and other researchers at Los Alamos discovered that the Martian climate alternated between dry and wetter periods before it went completely dry.


Spacecraft in orbit around Mars had previously provided clues. Pixabay

Spacecraft in orbit around Mars had previously provided clues about the mineral composition of the slopes of Mount Sharp. Now, ChemCam has successfully made detailed observations of the sedimentary beds from the planet’s surface, revealing the conditions under which they formed. Moving up through the terrain, Curiosity observed that the types of bed change drastically.

ALSO READ: Ingenuity: A NASA Helicopter Lands On Mars

Lying above the lake-deposited clays that form the base of Mount Sharp, sandstone layers show structures indicating their formation from wind-formed dunes, suggesting long, dry climate episodes, said the study. Higher up still, thin alternating brittle and resistant beds are typical of river-floodplain deposits, marking the return of wetter conditions.

These changes in terrain show that the climate of Mars underwent several large-scale fluctuations between wetter and dryer periods until the generally arid conditions observed today took hold. (IANS/SP)


Popular

Unsplash

Robots evolve to do more work around us

As robots evolve to do more work around us, the UK-based humanoid robot manufacturer Engineered Arts has infused more human-like facial expressions into one of its robots, which may leave you with an eerie feeling.

In a video posted on YouTube, the robot called 'Ameca' displays various human expressions, like appearing to "wake up" from sleep, as its face shows confusion and frustration when it opens its eyes.

Follow NewsGram on Twitter to stay updated about the World news.

Keep Reading Show less
Unsplash

The Microsoft office

Microsoft has disrupted the activities of a China-based hacking group, gaining control of the malicious websites the group used to attack organisations in the US and 28 other countries around the world.

The Microsoft Digital Crimes Unit (DCU) said in a statement that a federal court in Virginia granted its request to seize websites of the hacking group called 'Nickel', enabling the company to cut off Nickel's access to its victims and prevent the websites from being used to execute attacks.

Keep Reading Show less
Unsplash

MediaTek's plans to boost technology democratisation and enable access to disruptive connectivity

Chip manufacturer MediaTek on Monday announced that it is focused on making 2022 a year aimed at rapid growth, business success, substantial expansion in Research and Development capabilities.

MediaTek's plans to boost technology democratisation and enable access to disruptive connectivity with its range of mainstream to flagship 5G chips.

"We at MediaTek are focused on making 2022 a year aimed at rapid growth, business success, and substantial expansion in our R&D capabilities. For 2022, we are focused on further strengthening our presence in India, offering incredible experiences to customers, and supporting the country's technology initiatives with our expertise and collaboration with leading OEMs," Anku Jain, Managing Director, MediaTek India said in a statement.

Follow NewsGram on LinkedIn to know what's happening around the world.

In the flagship segment, MediaTek recently announced the Dimensity 9000 chip, which is a milestone of innovation and a rise to the incredible, built-to-power flagship 5G smartphones in the world, the company claims.

MediaTek Dimensity 9000 features a single Cortex-X2 performance core clocked at 3.05GHz, three Cortex-A710 cores at 2.85GHz and four Cortex-A510 efficiency cores at 1.8GHz.

It packs a 10-core Arm Mali-G710 that takes care of graphics processing, the report said.

Keep reading... Show less