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Anonymous

Davidmof

02 May 2025 - 09:58 pm

While the Cumberland sample may contain longer chains of fatty acids, SAM is not designed to detect them. But SAM’s ability to spot these larger molecules suggests it could detect similar chemical signatures of past life on Mars if they’re present, Williams said.
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“Curiosity is not a life detection mission,” Freissinet said. “Curiosity is a habitability detection mission to know if all the conditions were right … for life to evolve. Having these results, it’s really at the edge of the capabilities of Curiosity, and it’s even maybe better than what we had expected from this mission.”

Before sending missions to Mars, scientists didn’t think organic molecules would be found on the red planet because of the intensity of radiation Mars has long endured, Glavin said.
Curiosity won’t return to Yellowknife Bay during its mission, but there are still pristine pieces of the Cumberland sample aboard. Next, the team wants to design a new experiment to see what it can detect. If the team can identify similar long-chain molecules, it would mark another step forward that might help researchers determine their origins, Freissinet said.

“That’s the most precious sample we have on board … waiting for us to run the perfect experiment on it,” she said. “It holds secrets, and we need to decipher the secrets.”

Briony Horgan, coinvestigator on the Perseverance rover mission and professor of planetary science at Purdue University in West Lafayette, Indiana, called the detection “a big win for the whole team.” Horgan was not involved the study.
“This detection really confirms our hopes that sediments laid down in ancient watery environments on Mars could preserve a treasure trove of organic molecules that can tell us about everything from prebiotic processes and pathways for the origin of life, to potential biosignatures from ancient organisms,” Horgan said.

Dr. Ben K.D. Pearce, assistant professor in Purdue’s department of Earth, atmospheric, and planetary sciences and leader of the Laboratory for Origins and Astrobiology Research, called the findings “arguably the most exciting organic detection to date on Mars.” Pearce did not participate in the research.

Anonymous

Claudeoxify

02 May 2025 - 09:49 pm

Путешествуя по Украине, решил воспользоваться советами сайта и поехал в Винницу. Благодаря статье узнал не только про знаменитые фонтаны, но и про скрытые уголки города, которые не описаны в путеводителях.

Anonymous

Jasongow

02 May 2025 - 09:35 pm

Arctic auroras
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For getting around during winter, the Inuit here nowadays prefer snowmobiles, although they still keep their sled dogs. During winter they’ll offer intrepid visitors, wrapped up warm against the deep-freeze temperatures, dog-sledding jaunts. These can last either an hour or be part of expeditions over several days, sometimes with the added experience of learning how to build an igloo. Sisimiut on the west coast and Tasilaq in the southeast are active winter centers for dog sledding.

Winter’s most stellar attraction, though, is northern lights watching. With little urban light pollution, Greenland is a dark canvas for spectacular displays, and aurora borealis-watching vacations are becoming more popular.

Staying outdoors, Greenland is developing a reputation among adventure enthusiasts: from long-distance skiing expeditions and heliskiing on the icecap to hiking the 100-mile-long Arctic Circle Trail from Kangerslussuaq, where firearms need to be carried for warning shots in case of polar bear encounters.

Life is definitely changing here. The climate crisis is eating away at its icecap and Greenland may well end up as a pawn in a game of geopolitical chess. But for now, the bright glare of international attention should shine a favorable light on one of the wildest travel destinations on Earth.

Travel writer Mark Stratton is an Arctic specialist who has traveled to Greenland six times and counting. He’s marveled at the aurora borealis, sailed to Disko Island, dog-sledded with the Inuit, and once got stuck in an icefloe.

Anonymous

Lloydvup

02 May 2025 - 09:24 pm

Tesla is bringing its electric cars to oil-rich Saudi Arabia amid falling global sales
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Tesla will start selling its electric vehicles in Saudi Arabia, entering the Gulf region’s largest economy as the company’s global sales are sliding and CEO Elon Musk courts controversy with his role in the US government.

The carmaker announced Wednesday that it would host a launch event in the kingdom on April 10, where it will showcase its EVs. Attendees will also have the chance to “experience the future of autonomous driving with Cybercab and meet Optimus, our humanoid robot, as we showcase what’s next in AI and robotics,” Tesla (TSLA) said.

Tesla may struggle to gain market share in oil-rich Saudi Arabia as EVs make up a little over 1% of all car sales in the country, according to a report by consultancy PwC published in September.
Tesla’s entry into the new market comes as the company fights battles on several fronts.

Last year, it recorded the first annual decline in sales in its history as a public company, posting a drop of 1%.

The company is facing intensifying competition in China, the world’s largest auto market. On Tuesday, BYD, a Chinese maker of electric and hybrid cars, reported $107 billion in annual sales for 2024, beating the near-$98 billion notched by Tesla.

And last week, BYD unveiled an ultra-fast charging system, which it said was capable of adding 250 miles (402 km) of range in just five minutes, easily outdoing Tesla’s charging technology. Tesla’s Superchargers take 15 minutes to charge an EV, providing a range of 200 miles.

Tesla has also suffered slumping sales in Europe. In February, the carmaker sold around 40% fewer vehicles on the continent compared with the same month in 2024, according to the European Automobile Manufacturers’ Association.

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02 May 2025 - 08:17 pm

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Anonymous

Miriamhix

02 May 2025 - 01:44 pm

Not fully related, but I’d like to share something

A little earlier I found a site called Talabout project.

It’s full of raw talks with people from all walks of life — thoughtful, not your typical media stuff.

Sometimes the vibe there really echoes the stuff being shared here.


Ever read anything there?

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02 May 2025 - 12:49 pm

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Jasontox

02 May 2025 - 07:40 am

download # **Free Subnet Scanner for Windows: Find Vulnerabilities and Customize Your Tool** ## **Introduction** Network security is a critical concern for IT professionals, and identifying vulnerabilities within a subnet is a fundamental step in securing an infrastructure. A **subnet scanner** is a powerful tool that helps detect live hosts, open ports, and potential security weaknesses in a network. For Windows users, finding a **free, customizable subnet scanner** that also identifies vulnerabilities can be challenging. This article explores a **free subnet scanner for Windows**, its capabilities, and how you can further develop it to suit your needs. ## **Why Use a Subnet Scanner?** A subnet scanner automates the process of discovering active devices, services, and security gaps within a network. Key benefits include: - **Network Discovery** – Quickly identifies all connected devices. - **Vulnerability Detection** – Scans for outdated services, open ports, and misconfigurations. - **Security Auditing** – Helps in penetration testing and compliance checks. - **Customization** – Open-source tools allow modifications for specific needs. ## **Top Free Subnet Scanner for Windows** Several free tools can scan subnets and detect vulnerabilities on Windows. One of the most reliable options is **Advanced IP Scanner** by Famatech. ### **Features of Advanced IP Scanner** - **Fast Network Scanning** – Detects all devices in a subnet. - **Port Scanning** – Identifies open ports and running services. - **Remote Access** – Supports RDP and SSH connections. - **Exportable Reports** – Saves scan results in CSV or HTML format. Another powerful open-source alternative is **Nmap (Network Mapper)**, which offers deep vulnerability scanning with scripting capabilities. ### **Using Nmap for Vulnerability Scanning** Nmap is a command-line tool but has a GUI version called **Zenmap** for Windows. Key features: - **Host Discovery** – Finds live hosts in a subnet. - **Service Detection** – Identifies running services and versions. - **Vulnerability Scripting** – Uses NSE (Nmap Scripting Engine) to detect flaws. - **Custom Scans** – Allows advanced filtering and reporting. ## **How to Develop Your Own Subnet Scanner** If you want to **build or modify** a subnet scanner, consider using Python with libraries like: - **Scapy** – For packet manipulation and network scanning. - **Socket** – For port scanning and service detection. - **Nmap-Python** – Integrates Nmap into Python scripts. ### **Example: Simple Subnet Scanner in Python** ```python import scapy.all as scapy def scan_subnet(ip_range): arp_request = scapy.ARP(pdst=ip_range) broadcast = scapy.Ether(dst="ff:ff:ff:ff:ff:ff") arp_request_broadcast = broadcast / arp_request answered = scapy.srp(arp_request_broadcast, timeout=1, verbose=False)] devices = for element in answered: devices.append("ip": element].psrc, "mac": element].hwsrc) return devices print(scan_subnet("192.168.1.1/24")) ``` This script detects live hosts in a subnet using ARP requests. ## **Conclusion** A **free subnet scanner for Windows** like **Advanced IP Scanner** or **Nmap** can efficiently detect vulnerabilities and improve network security. For developers, building a custom scanner using Python provides flexibility and deeper control. Whether you use an existing tool or develop your own, regular subnet scanning is essential for maintaining a secure network environment. Would you like recommendations for additional tools or deeper scripting examples? Let us know in the comments!

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