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Images show Jezero Crater on Mars was once a calm lake – DNOTICIAS.PT

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Images show Jezero Crater on Mars was once a calm lake - DNOTICIAS.PT

The Jezero Crater on Mars, now an arid and windy depression, was a calm lake 3.7 billion years ago, points to the first scientific analysis of images from NASA’s Perseverance rover.

Analysis of the images, published yesterday in the scientific journal Science, shows that there are signs of flash flooding in the crater from a small river that fed the lake and carried large rocks downstream from the bottom of the lake.

The floods, according to the analyzed evidence, were strong enough to carry large stones for tens of kilometers, which later deposited at the bottom of the lake, where they remain to this day.

The conclusion is based on images of rocks exposed to the interior of the crater from the western side. Satellite images have already shown this outcrop, which when viewed from above resembles river deltas on Earth, where sediment layers form a fan-like shape.

New images of Perseverance, taken from inside the crater, confirm that this outcrop was actually a river delta. Based on the sedimentary layers of the outcrop, scientists speculate that the river flowed into a calm lake for most of its existence, until an abrupt change in climate caused episodic floods at the end or near the end of the lake’s existence.

“If you look at these images, you will mainly see this epic desert landscape. This is the most desolate place you could ever visit, ”said Benjamin Weiss, research team member and professor of planetary sciences in the Department of Science. Earth, Atmospheric and Planetary at MIT (Massachusetts Institute of Technology, Private University in Cambridge, USA).

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“There is not a drop of water anywhere, but still here we have evidence of a completely different past. Something very important has happened in the history of the planet, ”added the scientist quoted in a statement revealing image analysis.

Scientists hope to find more clues about the evolution of Mars’ climate as Perseverance explores the crater. Now that they have confirmed that the crater was once a lacustrine environment, they believe the sediments may contain traces of aquatic life. The robotic vehicle will collect sediment, which can be sent to Earth and thus studied.

“We now have the ability to search for fossils,” said researcher Tanya Bosak, assistant professor of geobiology at MIT, who is part of the group that analyzed the images.

Perseverance landed at Jezero Crater on February 18, just over a mile (1.6 km) from the western delta. The vehicle was stationary for the first three months, while NASA engineers performed remote checks on many of the instruments on board. During this period, two cameras took pictures of the surroundings.

By sending images to Earth, scientists observed individual layers of sediment and concluded that these sediments must have been deposited by water flowing into the lake, and not by wind or other geological processes.

Other images have led scientists to conclude that the fan-shaped formation actually belonged to an ancient river delta.

“Without moving anywhere, the rover was able to solve one of the big unknown problems – that this crater was once a lake,” said Benjamin Weiss.

The scientists explain that since the huge rocks that will be washed away by major floods are in the upper layers of the delta, it is because they are newly deposited material as they settle in the upper layers of older and smaller sediments. This indicates that for most of its existence, the ancient lake was fed by a peacefully flowing river.

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‘My power is really low’: NASA’s Mars Insight rover prepares to launch from the Red Planet

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NASA Lander InSight He has delivered what may be his last message from Mars as he embarks on a historic mission to uncover the secrets of the Red Planet’s interior.

In November, the space agency warned that the probe could be running out of time as dust continued to condense and stifle InSight’s power.

“Spacecraft power generation continues to decline as windblown dust accumulates on solar panels,” NASA said in a statement. Update November 2. “The end is expected to come in the coming weeks.”

message shared NASA The InSight Twitter account tweeted on Monday: “My power is very low so this might be the last photo I can upload. Don’t worry about me: my time here has been productive and uneventful. If I can keep talking to my mission team, I will—but I will.” Subscribe here soon. Thank you for staying with me.”

My power is very low, so this might be the last photo I can upload. But don’t worry about me: my time here has been productive and uneventful. If I can keep talking to my mission team, I will, but I’ll sign here soon. Thank you for staying with me. pic.twitter.com/wkYKww15kQ

— NASA InSight (@NASAInSight) December 19, 2022

A geologist robot armed with a hammer and a seismograph first reached the barren expanse of Elysium Planitia in November 2018.

Since then, she has carried out geological excavations, taking the first measurements of earthquakes with a high-tech seismometer placed right on the surface of Mars.

Last month, the solar-powered car released an update to remind us of its time in space.

“I was lucky to live on two planets. Four years ago I made it safely to the second one, much to the joy of my family at first. Thanks to my team for taking me on this journey of discovery. I hope I can be proud of you.”

According to the published mission, Insight has measured more than 1,300 seismic events since it was published, and more than 50 of them had signals clear enough for the team to extract information about their location on Mars. Results.

The probe’s data also provided detailed information about Mars’ interior, liquid core, surprisingly variable remnants beneath the surface of an extinct magnetic field, climate and seismic activity.

old for Its launch in 2018NASA Chief Scientist Jim Green said the mission was “fundamental to understanding the origins of our solar system and how it became what it is today.”

NASA will not declare the mission complete until Insight confirms the arrival of two spacecraft orbiting Mars that are relaying their information back to Earth.

In 2018, the veteran rover announced the capabilities end of his 15 year stay Sending an incomplete photo of the Valley of Perseverance.

A severe dust storm darkened the sky around the solar-powered rover, shattering the sun and leaving behind a dark image with white spots due to camera noise. The transmission is interrupted before the complete image can be transmitted.

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What’s new on February 7, 2023

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OnePlus 11 5G Buds Pro 2 evento

Being very close companies, OPPO and OnePlus have decided to create a new partnership, with the latter being a pioneer in the market. It has become the representative of the best smartphones in the group, and this will be seen very soon.

Proving this, OnePlus has announced that it will have news soon. The following brand assets will be announced on February 7, 2023. We are talking about OnePlus 11 5G and Buds Pro 2.


In recent years, OnePlus has been showcasing new hardware in an attempt to find a new place in the market. The brand has not always seen its full potential, betting on mid-range or entry-level smartphones.

The situation is changing, and the novelty will go on sale in early 2023, February 7. It is on this day that the new OnePlus 11 5G will be presented with all the expected news. We definitely have the new Qualcomm Snapdragon 8 Gen 2 SoC here. There's still 16GB of storage left and 256GB of onboard storage.

OnePlus 11 5G Buds Pro 2 events

It is expected that he will receive a 6.7-inch OLED display with a resolution of 1440p and a frequency of 120 Hz. In the field of photography, we will have an important change: a 50 MP main camera, a 48 MP ultra wide-angle camera and a 32 MP telephoto lens with 2x zoom. For selfies and video calls, you'll have a 16-megapixel camera.

The photography partnership with Hasselblad will continue with OnePlus for fine-tuning and some additions. This alliance has brought important results for the best smartphones of the brand, guaranteeing the best photos in any situation.

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OnePlus 11 5G Buds Pro 2 events

In addition to the new OnePlus 11 5G, another brand new feature is also expected to arrive at the event. We're talking about the Buds Pro 2, which are solidifying an audio commitment that's becoming more of a reality. The brand promises "rich stereo quality sound with crystal clear clarity".

Stays like this marked by the beginning of February, another important novelty will enter the market. OnePlus wants to reclaim its place, and that will be the brand's bet for years to come. OnePlus 11 5G and Buds Pro 2 take the first step in this direction.

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New POCO Smartphone Seen in Certification May Debut Soon

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New POCO Smartphone Seen in Certification May Debut Soon

According to information provided by Mukul Sharma, the unidentified POCO device can be identified by the model number 22127PC95I. Due to the fact that it was first seen online, the marketing name of this equipment is still a mystery.

POCO has not launched new mobile devices, including smartphones, to the market for some time now. On the other hand, several POCO smartphones such as POKO X5 and X5 Pro have been spotted on various certification sites, suggesting that the company will release these products soon. Today a new smartphone from the sub-brand xiaomi has been spotted on the BIS India website but the device does not have a name or any other details associated with it.

According to information provided by Mukul Sharma, the unidentified POCO device can be identified by the model number 22127PC95I. Due to the fact that it was first seen online, the marketing name of this equipment is still a mystery. It is possible that it will debut as a mid-range smartphone. The Bureau of Indian Standards (BIS) website, other than the model number of the smartphone, does not provide any additional information about the device. However, this seems to indicate that the product will be available in the Indian market very soon.

In other related news, POCO X5 5G has recently been seen on several certification sites including SIRIM in Malaysia, BIS in India and the US FCC. According to various sources, it is possible that this is a renamed or modified version Redmi Note 12 5Gwhich was recently released in China.

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It is supposed to be equipped screen 6.67″ AMOLED display with 120Hz refresh rate and chipset Snapdragon 4 Gen 1 inside. Can run MIUI 13 based on android 12 and have LPDDR4x RAM in addition to UFS 2.2 storage. The front camera is rumored to be 8MP while the main rear camera will be 48MP with 2MP depth. May have the ability drums 5000 mAh and 33W fast charging support.

In addition POCO X5 Pro 5G has recently been seen on various sites dedicated to certification. The battery is said to have a capacity of 5000 mAh and can charge at 67W. It will come with MIUI 14 preinstalled and will support n5, n7, n38, n41, n77 and n78 network bands. 5G.

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