Researchers presume the Gale crater was at one time a lake with brackish water, has rocks plentiful in mineral salts. Around 150 kms wide, this antiquated bowl was shaped when a meteor hit Mars in its initial days. NASA has just settled that the Gale pit has numerous layers of dregs, conveyed by water and wind that secured the bedrock for a while. Adding some lucidity to this early picture of Mars, Curiosity has discovered that these lakes were both shallow and briny (overly salty).
NASA’s Curiosity Rover Discovers Ancient Ponds That Once Dotted On Mars
Here on Earth, these salts are found in nature and framed in layers by the disintegration of rocks, streaming water and deposition in river beds. On Mars, these mineral salt stores are proof of fluctuating times of flooding water and what we refer to as dry seasons.
While it might be difficult to imagine today, Mars was at one time a ‘wet’ planet — a long way from the solidifying, barren ‘desert’ planet it is today. Researchers at NASA are attempting to see how this change occurred and at what rate everything unfurled.
Strikingly, this differentiating mineral creation in the Gale crater could likewise point to the purpose behind Mars’ climate story. The planet, which we presently realize once had liquid water on it, is a rough red desert today.
“As we climb Mount Sharp, we see an overall trend from a wet landscape to a drier one,” says Ashwin Vasavada, Curiosity Project Scientist at NASA’s JPL, which leads the Mars Science Laboratory mission of which the Curiosity rover is a part. “But that trend didn’t necessarily occur in a linear fashion.”
The scientists believe almost certainly, Mars’ atmosphere course of events over the past numerous million years wasn’t direct — there were drier periods, similar to those at Sutton Island, trailed by wetter periods like that saw in the ‘clay-bearing unit’ that Curiosity is as of now investigating.