As satellite threat looms, Air Force moves to buy small rocket services

As satellite threat looms, Air Force moves to buy small rocket services

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A dedicated 747-400 aircraft will carry Virgin Orbit’s LauncherOne to an altitude of approximately 35,000 feet before release for its rocket-powered flight to orbit.

Virgin Orbit

The U.S. military apparently wants to get into the business of launching smaller satellites on smaller rockets. In the administration’s proposed budget for fiscal year 2019, the Air Force budget contains a new “Rocket Systems Launch Program” item for the purpose of buying “small launch services” for the timely delivery of smaller payloads into low-Earth and geostationary transfer orbit.

Tech

via Ars Technica https://arstechnica.com

February 16, 2018 at 08:41AM

Oxygen ions may be an easy-to-track sign of life on exoplanets

Oxygen ions may be an easy-to-track sign of life on exoplanets

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The search for extraterrestrial life is fairly synonymous with the search for life as we know it. We’re just not that imaginative—when looking for other planets that could host life, we don’t know what to look for, exactly, if not Earth-like conditions. Everything we know about life comes from life on Earth.

But conditions that clearly favor life here—liquid water, surface oxygen, ozone in the stratosphere, possibly a magnetic field—may not necessarily be prerequisites for its development elsewhere. Conversely, their presence does not guarantee life, either. So what can we look for that’s an indication of life?

Skip the dwarfs

Most (about seventy percent) of the stars in our Galaxy are M dwarf stars, and many of them have associated planets. The search for signs of life has largely focused on these planets, primarily because there are so many of them. However, the environments do not seem to be especially welcoming. Because M dwarf stars are dim, the hospitable zones around them are very close to the star. As a result, the planets get stuck in a gravitational lock: their orbital period and their rotational period are the same. This means that (just like our moon) these planets always have the same hemisphere facing their sun.

In addition to light, this perpetual-day side is constantly barraged with X-rays and extreme ultraviolet radiation, and the whole planet is subject to forces that would drive off its atmosphere. Could life thrive, or even ever get a toehold, in this type of environment? “The long-term evolutionary consequences of such conditions are topics of active debate,” writes astronomy PhD candidate Paul Dalba in a recent Perspective piece in Nature Astronomy.

Instead of looking for life among the many Earth-sized planets orbiting M dwarfs, Dalba suggests we look at the Earth-size planets orbiting Sun-like (G-type) stars. There are only about 10 percent as many of these, but he thinks they might be better bets. And instead of looking for conditions that might support life, Dalba suggests looking for biosignatures. Specifically, atomic O+ ions at about 300km up.

The atmospheres of Earth and other planets contain neutral gas molecules, but also the ions and free electrons that result when these neutral gases absorb photons from the Sun. Many of those ions accumulate in (surprise!) the ionosphere. Earth’s ionosphere—and crucially, within the Solar System, only Earth’s ionosphere—has these atomic O+ ions. Like a lot of them; they account for over 90 percent of the ionic species up there.

Oxygen and life

Like Earth, Venus and Mars are small rocky planets; they have permanent atmospheres like Earth; and their atmospheres are exposed to the same solar radiation as Earth’s. Data from the Pioneer Venus Orbiter and the Viking descent probe on Mars show that they have very similar ionospheres to each other—which don’t contain a lot of atomic O+ ions. Know what else Venus and Mars are missing? Photosynthesis.

Dalba’s contention is that photosynthesis on a planet’s surface, which generates a surfeit of molecular oxygen, is the only thing that can account for these atomic O+ ions in a planet’s ionosphere. The mere existence of life throws a planet’s atmosphere out of chemical balance. O+ would be a neat biomarker because there isn’t a numerical cutoff required—just the dominance of O+ among the ionic species in the upper atmosphere would indicate “thriving global biological activity” on the planet below.

Dalba claims that Venus and Mars act as negative controls, demonstrating that planets like Earth but lacking life don’t have this O+ layer. Some may think that continuous volcanic activity on the surface could also generate enough oxygen, but Dalba doesn’t. Chemistry involving water and UV light can also release oxygen. But the amount of water on Earth is insufficient to account for the requisite oxygen content, so he thinks that the presence of water on other planets wouldn’t make enough oxygen there either.

Alas, at this point we don’t yet have the technology to assess the ionosphere of exoplanets for such a biosignature. Dalba concludes his piece with a plea to “the optical and radio remote sensing communities” to get to work on inventing the detectors that might be up to the task.

Nature Astronomy, 2018. DOI: 10.1038/s41550-017-0375-y (About DOIs).

Tech

via Ars Technica https://arstechnica.com

February 16, 2018 at 09:30AM

Is Uber shortchanging drivers? As part of lawsuit, over 9,000 now say yes

Is Uber shortchanging drivers? As part of lawsuit, over 9,000 now say yes

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The Uber ride sharing app is seen on a mobile phone on February 12, 2018.

Jaap Arriens/NurPhoto via Getty Images

Tech

via Ars Technica https://arstechnica.com

February 16, 2018 at 08:51AM

Raw sockets backdoor gives attackers complete control of some Linux servers

Raw sockets backdoor gives attackers complete control of some Linux servers

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gA stealthy backdoor undetected by antimalware providers is giving unknown attackers complete control over at least 100 Linux servers that appear to be used in business production environments, warn researchers.

In a blog post published Wednesday, Montreal-based GoSecure claimed that a piece of malware dubbed “Chaos” is infecting poorly secured systems by guessing weak passwords protecting secure shell application administrators use to remotely control Unix-based computers. The secure shell, or SSH, accounts being compromised run as root, and this is how the backdoor is able to get such access as well. Normally, firewalls in front of servers block such backdoors from communicating with the outside Internet. Once installed, Chaos bypasses those protections by using what’s known as a “raw socket” to covertly monitor all data sent over the network.

“With Chaos using a raw socket, the backdoor can be triggered on ports running an existing legitimate service,” Sebastian Feldmann, a master’s degree student intern working for GoSecure, wrote. “As an example, a Webserver that would only expose SSH (22), HTTP (80), and HTTPS (443) would not be reachable via a traditional backdoor due to the fact that those services are in use, but with Chaos it becomes possible.”

Once installed, Chaos allows malware operators anywhere in the world to gain complete control over the server via a reverse shell. The attacker can use their privileged perch to exfiltrate sensitive data, move further inside the compromised network, or as a proxy to conceal hacks on computers outside the network. To activate the backdoor, attackers send a weakly encrypted password to one of the ports of the infected machine.

GoSecure researchers said the password was easy for them to crack because it was hardcoded into the malware using the ancient DES encryption scheme. That means that infected systems aren’t accessible only to the people who originally planted Chaos but by anyone who, like GoSecure, invests the modest resources required to crack the password. The researchers performed an Internet-wide scan on January 19 and detected 101 machines that were infected.

Apathy is malware’s best friend

They reported their findings to the Canadian Cyber Incident Response Center in hopes of getting the affected organizations to disinfect their systems. A scan on Wednesday, however, showed that 98 servers remained infected. The compromised systems were located in a variety of big-name hosting services, including Cloudbuilders, Rackspace, Digital Ocean, Linode, Comcast, and OVH.

As the researchers dug further into Chaos, they discovered that the malware was nothing more than a renamed version of a backdoor that was included in a rootkit known as SEBD—short for Simple Encrypted Backdoor for Linux—which was publicly released in 2013. Despite its availability for more than five years, this VirusTotal query indicates that none of the 58 most widely used anti-malware services detect it. GoSecure further noted that the attackers are bundling Chaos with malware for a botnet that’s being used to mine the cryptocurrency known as Monero.

The key weakness that allows Chaos to spread is the use of a weak password to protect SSH. Best practices call for SSH to be protected with a cryptographic key and a strong password. Wednesday’s blog post provides a set of indicators that administrators can use to determine if any of their systems are compromised. Besides disinfecting affected servers, admins should make sure their SSH apps are adequately protected to prevent similar attacks from succeeding again.

Tech

via Ars Technica https://arstechnica.com

February 16, 2018 at 08:22AM

Why Sex Scandals Persist In The Humanitarian Aid World

Why Sex Scandals Persist In The Humanitarian Aid World

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An Oxfam sign outside one of its charity shops in central London, where they sell secondhand goods to raise funds.

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An Oxfam sign outside one of its charity shops in central London, where they sell secondhand goods to raise funds.

Alberto Pezzali/NurPhoto via Getty Images

It’s a story that has stunned the public.

Last week, a report by The Times of London found that in 2011, the national director for Oxfam in Haiti and senior aid workers hired local sex workers while working in the country. After an internal investigation, the Times reported, Oxfam accepted the resignations of three men and fired four for gross misconduct.

At the time, the charity was providing relief efforts after the 2010 earthquake that killed 220,000 people and left 1.5 million homeless.

Across social media, critics and Oxfam donors expressed their outrage.

For staffers and researchers in the humanitarian sector, the incident in Haiti was disturbing — but not shocking. For decades, there have been reports of relief workers sexually exploiting the very people they are trying to help.

“I wasn’t surprised by the revelations. This is a sector-wide problem,” says Megan Nobert, a human rights lawyer and founder of Report the Abuse, a project that researched sexual offenses by aid staffers from 2015 to 2017. “It’s one that’s affecting not just Oxfam but [also] the U.N. and small NGOs.”

For this reason, most aid groups have ethical codes of conduct that explicitly prohibit sexual exploitation, which the U.N., in their own ethics handbook, calls a “catastrophic failure” to protect those they serve.

In the past, when a scandal like this was exposed, “the world was horrified for a short period of time. Aid groups would say it’s terrible, we’re going to strengthen our systems and everybody is appeased,” says Paula Donovan, head of Code Blue, a campaign to end impunity for sexual exploitation and abuse by U.N. personnel. “Then it happens again.”

Aid observers think that in this era of #MeToo — the movement against sexual assault in the workplace — momentum is finally building for a new commitment in the aid community to zero tolerance.

For this reason, Donovan thinks that the Oxfam incident could trigger real change in the sector. “There’s a perfect storm now,” she says.

A history of sexual exploitation

The reports of sexual abuses in the aid industry cover a variety of victims, behaviors and organizations. Sometimes these incidents involve aid workers assaulting their colleagues. For two years, Nobert collected stories of staffer-on-staffer violence from more than 1,000 individuals for Report the Abuse, published in a report in 2017.

But the Oxfam scandal focuses on a different type of problem: humanitarian workers who sexually assault aid recipients. The workers may be employed by an aid group or be part of the U.N. peacekeeper force.

The forms of exploitation include range from sexual harassment to buying sex and bartering for sex to sex with a minor and rape, according to a document prepared by the U.N. in 2016.

And for aid workers who have wondered whether hiring a sex worker is truly grounds for dismissal, a task force created by the Inter-Agency Standing Committee — whose members include U.N. agencies, the WHO and the World Bank — makes it clear: “In most communities, the vast majority of women in prostitution don’t want to be there,” it states in an FAQ on its website. “Exploitative sex [is] one of the few avenues they have for obtaining money to meet basic needs.”

It’s hard to say how widespread this problem is. “Anecdotally, we know that this happens, though getting exact data collected and published has not always been common protocol,” says Nobert.

In the wake of the Oxfam scandal, however, a number of cases involving some of the major aid agencies have emerged. World Vision told Reuters on Tuesday that there were 10 incidents with volunteers or staff in 2016 “involving either sexual exploitation or abuse of a child involved in one of the charity’s activities.”

There have been incidents reported in the past as well.

In 2002, after mounting concerns about sexual violence by aid workers and U.N. employees against children in West Africa, Save the Children and UNHCR, the U.N. refugee agency, investigated the issue in a report. In a survey of 1,500 adults and children, researchers collected allegations of abuse and exploitation against 67 individuals. They found cases of staffers who traded humanitarian aid, like cooking oil and bulgur wheat for sex with girls under 18.

A few years later, spurred by a high-level U.N. meeting on sexual violence among staffers in 2006, Save the Children conducted another investigation, this time in Haiti, Sudan and the Ivory Coast. It found that aid workers from a number of organizations had asked children for “lesbian sexual displays,” filmed girls engaging in sexual activity in exchange for food rations or U.S. dollars.

Other cases have centered around sexual abuse by U.N. peacekeepers, who travel to disaster and conflict zones to protect civilians. A U.N. report found that in 2014, U.N. peacekeepers in the Central African Republic, largely from a French military force, were sexually abusing children in exchange for food or money. Some of the children were as young as 8 years old.

Donovan says that the peacekeepers also engage in sexual relations with women of child-bearing age — and there’s even a nickname for babies to women who become pregnant: “peacekeeper babies.”

Many Western charities and the U.N. have clear policies in place that prohibit such sexual exploitation. In a 2003 document, the U.N. states that acts of sexual exploitation are grounds for dismissal. Codes of conduct from Western charities like the Danish Refugee Council and the Lutheran World Federation, from 2007 and 2005, respectively, have similar language for its staffers.

Unpunished acts

So then why does this behavior persist?

“We have the guidelines, policies, procedures in place to prevent this. That’s not lacking,” says Judith Greenwood, head of the CHS Alliance, a charity network based in Geneva. In 2016, her group hosted a conference in Bangkok to explore ways that aid groups could improve investigations into allegations of sexual exploitation.

“What’s lacking,” says Greenwood, “is the application.”

Studies and reports have shown that sex offenses committed by staffers often happen without serious consequences to the perpetrators and that justice is rarely brought to victims. A 2015 independent report on the U.N. peacekeepers’ sex crimes, for example, detailed a “gross institutional failure to respond to the allegations in a meaningful way.”

Even Oxfam acknowledges its failings in a February 9 press release: “We have not done enough to change our own culture and to create the strongest possible policies to prevent harassment and protect people we work with around the world.”

Seeking solutions

Even before the Oxfam outrage, there were signs of change. In 2015, Donovan’s campaign, Code Blue, was created to keep up the pressure to end sexual exploitation by U.N. peacekeepers and seek justice for the victims. Its name hearkens to the peacekeepers’ iconic blue helmets.

In January 2017, just days after he took office, U.N. Secretary-General Antonio Guterres created a high-level task force to tackle the peacekeeper problem internally.

Still, more needs to be done, says Greenwood.

For one, aid groups need to do a better job of vetting employees, says Paul Spiegel, who directs the Center for Humanitarian Health at Johns Hopkins University. “Aid workers are recycled among different organizations because people are desperate to find staffers to go to these places at times.”

As for offenders: “Maybe you need to be blackballed in the community,” says Spiegel. “This person could never be hired again.”

Oxfam acknowledges that Roland van Hauwermeiren, the head of mission in Haiti who hired the sex workers in 2011, had also paid for sex while stationed in Chad in 2006. The charity had known about the allegation yet still hired him to work in Haiti four years later.

Since the Oxfam story broke last week, the charity shared how it plans to regain the trust of the people it aims to help. It will hire an independent body to look through past cases of sexual abuse at the charity to see if they can be reopened. It has set up a confidential whistleblowing hotline. It promises to do a better at checking the background of potential hires.

Oxfam’s deputy chief executive, Penny Lawrence, stepped down on Monday, taking “full responsibility” for the Haiti incident, which happened under her watch.

And Winnie Byanyima, executive director of Oxfam International, told NPR that the group will work with local authorities in Haiti to achieve justice for the women who were abused by the staffers. “For some [victims], that might mean helping them find better jobs, or helping them find markets [where they can sell goods],” she says, with the ultimate purpose of “restoring dignity.”

Both Greenwood’s group and Nobert have given credit to Oxfam for the steps it has taken.

Meanwhile, there could be financial consequences, not just for Oxfam but for other British charities. The United Kingdom, which gives $45 million to Oxfam annually, threatened to cut funding to overseas aid agencies if they fail to address sexual exploitation by their employees and volunteers in the field.

“Unless you safeguard everyone your organization comes into contact with, including beneficiaries, staff and volunteers, we will not fund you,” said Penny Mordaunt, U.K. secretary of state for international development at a conference in Stockholm on Wednesday.

These “respectful demands for humanitarian organizations to do better has helped hold us accountable, has helped us move forward,” says Nobert, founder of Report the Abuse.

But even a critic like Nobert, who in 2015, spoke publicly about being drugged and raped by a U.N. supplier while on a mission to South Sudan, stands by the work of these organizations.

“Don’t stop funding these groups. Not every humanitarian is committing acts of sexual abuse,” she says. “The vast majority go to [the field] to alleviate poverty and help people.”

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February 15, 2018 at 03:27PM

Autonomous vehicle that will run your errands

Autonomous vehicle that will run your errands

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Transcript:
This vehicle runs your errands for you. Nuro is an on-road autonomous vehicle designed to transport goods. Nuro is a California startup founded by former Google engineers Dave Ferguson and Jiajun Zhu. They want the Nuro vehicle to move goods between consumers and businesses. The robot is fully autonomous. In all of Nuro’s footage there is no driver or passengers.
California startup Nuro created an autonomous robotic vehicle. The unnamed was built to move goods between consumers and

Continue reading Autonomous vehicle that will run your errands

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February 15, 2018 at 08:43PM