NASA Finds Rock On Mars That Looks Like A Medieval Helmet

Written by Fabio Lucas Carvalho

Published on 14/08/2025 at 08:00

A rocha marciana parece um capacete holandês do século XVII .(Crédito da imagem: Esquerda: NASA/JPL-Caltech/ASU. Direita: Rogers Fund, 1904)

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Perseverance Rover Records Rock on Mars Shaped Like a Helmet and Covered with Spherules, Raising New Geological Questions.

The Perseverance rover, from NASA, captured an intriguing image on the surface of Mars. On August 5, 2025, the Mastcam-Z instrument took a picture of a rock shaped like a volcano that resembles an ancient battle helmet.

The object features a pointed peak and a nodular texture, with grooves reminiscent of armor forged centuries ago.

On Earth, similar formations can arise from chemical weathering, mineral precipitation, or volcanic processes.

ARTICLE CONTINUES BELOW

Composition and Hypotheses

According to David Agle, spokesperson for NASA’s Jet Propulsion Laboratory, the rock, nicknamed Horneflya, stands out for being composed almost entirely of spherules. He emphasized that the hat-like shape is less significant than the composition, which may help understand Martian geological processes.

Scientists believe that, in some cases, these spherules form when groundwater permeates the pores of sedimentary rocks.

However, it is uncertain whether all originated in this manner. Therefore, the Perseverance team will continue investigating other formations in search of answers.

Technology and Observation

The Mastcam-Z, a set of zoom cameras mounted on the rover’s mast, allows for high-resolution stereo images. This technology makes it easier to identify details from a distance, as seen with the “helmet” rock covered in spherules.

Additionally, Perseverance has already collected a varied assortment of unusual shapes. Among them are donuts-shaped meteorites and stones resembling avocados.

These images highlight pareidolia, a phenomenon where the human brain recognizes familiar patterns in random shapes.

Importance for Science

For researchers, formations like the helmet rock help reconstruct Mars’ environmental history. They show how wind, water, and internal processes have shaped the landscape over billions of years. This type of finding may indicate past interactions with water, a crucial factor for understanding the planet’s evolution.

Currently, Perseverance is exploring the northern edge of Jezero Crater. At the end of last year, it completed a challenging ascent to the location known as “Lookout Hill,” from where it continues its mission to investigate geological mysteries and search for signs of habitable conditions in Mars’ past.

NASA Finds Rock On Mars That Looks Like A Medieval Helmet

Perseverance Rover Records Rock on Mars Shaped Like a Helmet and Covered with Spherules, Raising New Geological Questions.

Composition and Hypotheses

Technology and Observation

Importance for Science

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NASA Finds Rock On Mars That Looks Like A Medieval Helmet

Perseverance Rover Records Rock on Mars Shaped Like a Helmet and Covered with Spherules, Raising New Geological Questions.

Composition and Hypotheses

Technology and Observation

Importance for Science

A giant printer called the “Ferrari” of concrete has landed in Latin America and can already build a 120-square-meter house in just 48 hours, making the traditional construction site look like something from the last century.

Great Atlantic Sargassum Belt has ceased to be a climatic phenomenon and has become a biological system that feeds on itself, with 8,000 kilometers in length, 37 million tons of algae, and scientists confirm that it is now permanent.

A British company has installed in the middle of the ocean the world’s first floating platform that generates electricity 24 hours a day from the temperature difference between the surface and the depths of the Atlantic, without relying on wind or sun.

Brazil will harvest a record crop of up to 357 million tons of grains, but it does not have the capacity to store a large part of it. The storage deficit has reached the highest level in history and is equivalent to almost the entire production of Argentina.

Engineers had to pour concrete mixed with tons of ice throughout entire nights in the Dubai desert to erect the Burj Khalifa; any carelessness could clog the pipes half a mile high.

The James Webb telescope spotted a planet 700 light-years from Earth with mornings full of sand clouds and nights with clear skies, the temperature difference between the two hemispheres reaches an impressive 170 degrees.

Air bubbles from 3 million years ago extracted from Antarctic ice reveal that the current level of CO₂ has already surpassed that of the ancient, warm world, when the sea was up to 20 meters higher and there were no factories or cars burning fuel.

Brazil went to China to seek money and technology to reinvent TV and bring the internet to places where fiber does not reach. The mission negotiated with the BRICS Bank led by Dilma and paved the way for a Chinese rival of Starlink to connect the Amazon.

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Brazil went to China to seek money and technology to reinvent TV and bring the internet to places where fiber does not reach. The mission negotiated with the BRICS Bank led by Dilma and paved the way for a Chinese rival of Starlink to connect the Amazon.

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