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CHEYAVA FALLS

29th July, 2024

CHEYAVA FALLS

Source: IndianExpress

Disclaimer: Copyright infringement not intended.

Context

  • The Perseverance rover studied a rock named "Cheyava Falls" in the Jezero Crater.

Details

Key findings

Aspect

Details

Potential Biosignature

The rock contains features reminiscent of microbial activity, potentially serving as a "biosignature" — a structure or texture in rocks that might suggest biological origins.

Organic Compounds

The rover detected organic molecules within the rock. While these compounds can be building blocks of life, they can also be formed by non-biological processes.

Geological Features

The rock shows veins of calcium sulfate, indicating past water flow. Small off-white splotches with black rings were also found, similar to features formed by chemical reactions involving organic compounds on Earth.

Scientific Significance

The rock's features, including the presence of organic compounds and water-related minerals, suggest an environment that could have supported life. However, more detailed analysis is required to confirm this.

Sample Collection and Return

Perseverance has drilled and stored samples of the rock for potential future return to Earth. This is crucial as more detailed and conclusive analysis can be performed on Earth.

Challenges in Sample Return

The Mars sample return mission is facing challenges, including budget overruns and delays, potentially pushing the return date to 2040. NASA is exploring alternative methods to expedite the return.

Future Plans

Perseverance will continue to explore the Jezero Crater, focusing on areas that may have once been habitable. The mission's success depends on the logistics and planning of sample return strategies.

NASA's Perseverance Rover

Aspect

Details

Mission Overview

The Perseverance Rover, part of NASA's Mars 2020 mission, is designed to explore the Jezero Crater on Mars. It aims to search for signs of ancient microbial life, characterize the planet's geology and climate, and collect samples for future return to Earth.

Launch Date

July 30, 2020

Landing Date

February 18, 2021

Landing Site

Jezero Crater, Mars

Mission Duration

At least one Martian year (approximately 687 Earth days), with potential extensions

Key Objectives

1. Search for past life signs (biosignatures) in ancient environments.

2. Study Mars' climate and geology.

3. Collect and cache Martian rock and regolith samples.<br>4. Demonstrate technology for future human exploration.

Scientific Instruments

  • Mastcam-Z: Advanced camera system for imaging the Martian surface
  • SuperCam: Analyzes the chemistry of rocks and soil.
  • PIXL (Planetary Instrument for X-ray Lithochemistry): Measures elemental composition.
  • SHERLOC (Scanning Habitable Environments with Raman & Luminescence for Organics and Chemicals): Detects organic compounds.
  • MOXIE (Mars Oxygen ISRU Experiment): Demonstrates oxygen production from Martian CO2.
  • MEDA (Mars Environmental Dynamics Analyzer): Provides weather reports.
  • RIMFAX (Radar Imager for Mars' Subsurface Experiment): Ground-penetrating radar for subsurface exploration.

Technology Demonstrations

Ingenuity Helicopter: The first powered flight on another planet, demonstrating aerial exploration capabilities. Made its first flight on April 19, 2021, and completed 72 flights by January 18, 2024.

Key Discoveries

- Detection of organic molecules in rock samples

- Detailed mapping of subsurface structures using RIMFAX.

- Exploration of diverse geological formations and environments that may have once been habitable.

Sample Collection

Perseverance is designed to collect and store samples of Martian rock and regolith for a potential future return mission to Earth, in collaboration with the European Space Agency (ESA).

Future Mission Goals

The data and samples collected will provide critical information for future missions, including human exploration of Mars under NASA's Artemis program.

Must read articles:

About Mars

Mars Missions

Geographical features on Mars

Feature

Description

Notable Details

Valles Marineris

A vast canyon system on Mars.

Length: 4,000 km (about a fifth of the Martian circumference), Width: up to 600 km, Depth: up to 7 km. It dwarfs the Grand Canyon on Earth, which is 450 km long, 29 km wide, and 1.6 km deep​​.

Olympus Mons

The tallest volcano and shield volcano in the solar system.

Height: 26 km (three times the height of Mount Everest), Diameter: 600 km. Located at the western edge of the Tharsis region​​

Hellas Basin

An enormous impact crater in the southern hemisphere.

Diameter: 2,300 km, Depth: more than 9 km. One of the largest impact craters in the solar system​.

Tharsis Region

A vast volcanic plateau centered near the equator in the western hemisphere of Mars.

Contains several large volcanoes, including Olympus Mons, Arsia Mons, Pavonis Mons, and Ascraeus Mons. The region is about 4000 km wide and up to 10 km high​.

Northern Lowlands

A smooth, flat region that makes up the northern hemisphere of Mars.

On average, 6 km lower than the southern highlands. This region includes the Vastitas Borealis, which is thought to have been an ancient ocean bed​.

Southern Highlands

Rugged, heavily cratered highlands making up the southern hemisphere of Mars.

Contains some of the oldest terrain on Mars, including the Noachis Terra region, which dates back to the Noachian period​.

Argyre Basin

A large impact basin located in the southern hemisphere of Mars.

Diameter: approximately 1,800 km. Contains significant deposits of ice and is believed to have played a role in the planet's hydrological cycle​.

Isidis Planitia

A plain located inside a very ancient, large impact basin just north of the Martian equator.

Believed to be one of the flattest surfaces on Mars and a candidate location for the presence of water ice​.

Gale Crater

A large crater with a diameter of about 154 km, which includes a central mountain, Aeolis Mons (Mount Sharp).

Landing site of the Curiosity Rover, which has been exploring the area since 2012. The crater is believed to have once held a lake​.

Utopia Planitia

A large plain within the Utopia impact basin in the northern hemisphere.

Largest recognized impact basin on Mars, with a diameter of about 3,300 km. Viking 2 landed here in 1976​.

Elysium Mons

A volcanic region located in the Elysium Planitia.

Known for its relative isolation compared to other Martian volcanoes. Height: about 13.9 km​​.

Cerberus Fossae

A series of fissures or troughs on Mars.

Thought to be formed by tectonic processes and potential volcanic activity. Associated with relatively recent geological activity, including possible water flow​​.

Amazonis Planitia

A vast plain that lies between the Tharsis and Elysium volcanic regions.

Characterized by its smooth surface, which suggests it may have been shaped by volcanic and aeolian processes​.

Noachis Terra

An extensive region in the southern hemisphere.

Contains heavily cratered highlands and is named after the Noachian period, which signifies the planet's oldest geological era​.

Hesperia Planum

A region of plains in the southern hemisphere of Mars.

Known for its volcanic and tectonic features, which are representative of the Hesperian period on Mars, a time marked by significant volcanic and fluvial activity​.

Planum Boreum

The northern polar cap of Mars.

Composed primarily of water ice and covered by a layer of dry ice (frozen carbon dioxide) during the winter. Contains a spiral trough pattern due to wind erosion​.

Planum Australe

The southern polar cap of Mars.

Similar to Planum Boreum, it consists mainly of water ice, with seasonal dry ice coverage. Known for its large, layered deposits and deep valleys​.

Sources:

IndianExpress

PRACTICE QUESTION

Q: Consider the following statements about NASA's Perseverance Rover:

  1. It is the first rover to carry a microphone to Mars.
  2. It aims to collect and cache Martian soil samples for potential return to Earth.
  3. The rover's landing site is the Gale Crater.

Which of the above statements is/are correct?

A. 1 and 2 only
B. 2 and 3 only
C. 1 and 3 only
D. 1, 2, and 3

Answer: A.