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12 gru 2023 · The six-wheeled scientist has to date collected a total of 23 samples, revealing the geologic history of this region of Mars in the process. One sample called “Lefroy Bay” contains a large quantity of fine-grained silica, a material known to preserve ancient fossils on Earth.
University of Florida astrobiologist Amy Williams looked up from the bed of that ancient river to its rocky remnants, courtesy of the Mars Perseverance rover, which sends on-the-ground views of the red planet back to Williams and the rest of the NASA team.
27 gru 2023 · After 1,000 Martian days of exploration, NASA’s Perseverance rover is studying rocks that show several eras in the history of a river delta billions of years old. Scientists are investigating this region of Mars, known as Jezero Crater, to see if they can find evidence of ancient life recorded in the rocks.
A 1962 map of Mars published by the U.S. Aeronautical Chart and Information Center, showing canals snaking through the Martian landscape. At the time, the existence of the canals was still highly controversial as no close-up pictures of Mars had been taken (until Mariner 4's flyby in 1965).
7 paź 2021 · CNN — Images captured by the Perseverance rover have allowed scientists to peer back in time at what Mars was like billions of years ago. Jezero Crater, the rover’s exploration site on Mars, was...
4 kwi 2018 · The ancient terrains of Mars are puzzling. Mars is currently cold and dry with a thin atmosphere. But valley networks sculpted more than 3.5 billion years ago are strikingly similar in their...
15 wrz 2021 · By studying the topography and mineral composition of a portion of the Arabia Terra region in northern Mars, scientists recently found evidence for thousands of such eruptions, or “super eruptions,” which are the most violent volcanic explosions known.
