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NASA begins critical final test on mega moon rocket

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NASA on Friday began a critical two-day-long test of its giant Space Launch System (SLS) rocket complete with a simulated countdown, as the agency gears up to send humans to the moon again.

Known as the “wet dress rehearsal,” it is the final major test before the Artemis-1 mission this summer: an uncrewed lunar flight that will eventually be followed by boots on the ground, likely no sooner than 2026.

“The countdown is now underway,” NASA said in its Artemis blog at 5:00 p.m. Eastern Time (2100 GMT), confirming members of the launch control team had been issued their “call to stations.”

Data from the test, which ends mid-afternoon on Sunday, will be used to finalize a launch date for Artemis-1. NASA had said May could be the first window, but later now seems likely.

It is called a “wet” dress rehearsal because supercooled liquid hydrogen and liquid oxygen will be loaded into the SLS from the ground systems, just as they would be in a real launch.

The 98-meter rocket – expected to be the most powerful in history at the time it is operational – was rolled out to Launch Complex 39B at the Kennedy Space Center in Florida around two weeks ago.

Teams are now filling up a sound suppression system with water that is used to dampen acoustic energy during lift-off. They will continue to practice every operation that would be carried out in a real launch.

Come Sunday morning, with the SLS rocket and Orion crew capsule fixed atop both powered on, they will load up 700,000 gallons (2.6 million liters) of propellant.

They won’t actually ignite the rocket’s RS-25 engines, which were tested previously. Instead they will halt the countdown about 10 seconds before liftoff, in order to simulate a “scrub,” when launch is aborted due to technical or weather-related issues.

The fuel will be drained, and a few days later SLS and Orion will be rolled back to the vehicle assembly building to carry out checks on how everything went.

Test milestones will be posted on NASA’s blog for the Artemis mission, and the public might be able to get a glimpse of the rocket venting vapor on the launch pad on April 3, during tanking operations, on the agency’s YouTube channel.

On Monday, agency officials plan to hold a press conference to give further information.

NASA won’t however let the public listen to live internal audio.

Senior NASA official Tom Whitmeyer explained this was because certain key information, including timing sequences, could assist other countries looking to develop long range missiles, and fall foul of export control regulations called International Traffic in Arms Regulations (ITAR).

“We’re really, really super sensitive to cryogenic launch vehicles that are of this size and capability, (and) are very analogous to ballistic type capabilities that other countries are very interested in,” he said, but added that the agency could re-evaluate the position in the future.

The decision has caused some confusion, as commercial launch companies routinely make their countdown audio available, while most intercontinental ballistic missiles run on solid fuel, not liquid propellants.

Source: CGTN 

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UN adopts first global artificial intelligence resolution to ensure AI is safe

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The United Nations General Assembly unanimously adopted the first global resolution on artificial intelligence on Thursday, encouraging countries to safeguard human rights, protect personal data, and monitor AI for risks.

The nonbinding resolution, proposed by the United States and co-sponsored by China along with over 120 other nations, also advocates for the strengthening of privacy policies.

“Today, all 193 members of the United Nations General Assembly have spoken in one voice, and together, chosen to govern artificial intelligence rather than let it govern us,” U.S. Ambassador to the United Nations Linda Thomas-Greenfield said.

The resolution is the latest in a series of initiatives – few of which carry significant enforceability – by governments around the world to shape AI’s development amid fears it could disrupt democratic processes, turbocharge fraud, or lead to dramatic job losses, among other harms.

“The improper or malicious design, development, deployment and use of artificial intelligence systems … pose risks that could … undercut the protection, promotion and enjoyment of human rights and fundamental freedoms,” the measure states.

In November, the U.S., Britain and more than a dozen other countries unveiled the first detailed international agreement on how to keep artificial intelligence safe from rogue actors, pushing for companies to create AI systems that are “secure by design.”

Europe is ahead of the United States, with EU lawmakers adopting a provisional agreement this month to oversee the technology. The Biden administration has been pressing lawmakers for AI regulation, but a polarized U.S. Congress has made little headway. In the meantime, the White House sought to reduce AI risks to consumers, workers, and minorities while also bolstering national security with a new executive order in October.

The resolution aims to close the digital divide between rich developed countries and poorer developing countries to ensure that all are included in discussions on AI. It also aims to ensure that developing countries have the technology and capabilities to take advantage of AI’s benefits, including detecting diseases, predicting floods, helping farmers, and training the next generation of workers.

The resolution recognizes the rapid acceleration of AI development and use and stresses “the urgency of achieving global consensus on safe, secure and trustworthy artificial intelligence systems.”

It also acknowledges that “the governance of artificial intelligence systems is an evolving area” that requires further discussions on possible governance approaches and emphasizes that innovation and regulation are mutually reinforcing – not mutually exclusive.

Source(s): CGTN

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Beijing still tops Nature Index global science city rankings

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Beijing has consistently ranked first in the global science city rankings for eight consecutive years, as measured by the Nature Index, according to Yin Yong, deputy secretary of the Communist Party of China (CPC) Beijing Municipal Committee and mayor of Beijing.

Nature Index tracks the authorship of articles in prestigious research journals and Beijing’s ranking has shown that the city remains the top science city in the world.

On Tuesday, China’s State Council Information Office held a press conference on leveraging Beijing’s strategic role as the national capital, initiating a new chapter in high-quality development. Yin made the remarks while he answered questions from the media at the press conference.

Yin also introduced the capital’s achievement in seeking scientific and technological innovation and attracting high-level talent in science and technology.

Beijing has 92 colleges and universities, and more than 1,000 research institutes and its numbers of national laboratories and large scientific installations are ranked first in the country.

Beijing’s investment in research and development has also been among the largest in the country. Every 10,000 people in Beijing hold an average of over 262 invention patents, ranking first in China.

The capital has a large talent pool with more than 550,000 scientific researchers. In the field of artificial intelligence, for instance, Beijing’s top talent accounts for about 43 percent of the country’s total.

An average of 337 technology-based enterprises are established in Beijing every day, and the number of national high-tech enterprises and unicorn enterprises rank first among all cities in the country.

Source(s): CGTN

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Newly operated Hydro-floating solar project showcases China-Thailand cooperation in clean energy

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KHON KAEN, Thailand, March 5 (Xinhua) — A hydro-floating solar project jointly built by Chinese and Thai companies started commercial operation on Tuesday to support Thailand’s development of clean energy.

The Ubolratana Dam hydro-floating solar hybrid power plant, located in Thailand’s northeastern Khon Kaen province, integrates floating solar panels, clean hydropower, high-efficiency energy storage systems, and smart energy management systems, according to Dongfang Electric International Corporation, one of the world’s largest manufacturers of power-generating equipment that built the project with its Thai partner.

Jiraporn Sirikum, deputy governor of the Electricity Generating Authority of Thailand (EGAT), said building floating solar hybrid power plants is an important step toward the clean energy production and power stability of Thailand, praising the Chinese and the Thai companies for being able to deliver the project ahead of schedule.

“This showed a serious commitment to promoting clean energy in Thailand. We sincerely hope that the floating solar will help to promote clean energy for the community economy and local society,” Jiraporn told a commercial operation launching ceremony.

Liu Hongmei, Chinese Consul General in Khon Kaen, said she believed that the project’s commercial operation would bring greater well-being to the people of Northeast Thailand and mark a new milestone for Chinese enterprise investment in the region.

The Ubolratana Dam hydro-floating solar hybrid power plant is its second such hydro-floating solar project, said EGAT, which aims to build more such projects nationwide to promote clean energy.

Source(s): Xinhua

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