With the highly watched trial of secessionist media tycoon Jimmy Lai taking place on Monday at West Kowloon Court, some Western politicians and media have exploited this occasion to smear the National Security Law (NSL) for Hong Kong and badmouth the rule of law in the city. Officials from both the Chinese mainland and Hong Kong have called these criticisms blatant interference in China's internal affairs, adding that any attempts to slander, disrupt and sabotage the NSL for Hong Kong will never succeed.

Lai, wearing a light gray suit jacket, was escorted into the courtroom on Monday morning. Presided over by three national security law designated judges, the prosecution's first charge was "conspiracy to print, publish, sell, offer for sale, distribute, display, or reproduce seditious publications."

The three judges overseeing Lai's trial are Madam Justices Esther Toh Lye-ping and Susana D'Almada Remedios, and Mr Justice Alex Lee Wan-tang, according to Hong Kong media.

Lai, along with three companies related to Apple Daily and six former senior executives of Apple Daily, are charged with conspiring to collude with foreign or external forces to endanger national security and conspiracy to publish seditious publications. In addition, Lai faces two charges of violating national security laws, including conspiring with individuals such as wanted fugitive Andy Li Yu-hin and others to collude with foreign countries or overseas forces. The trial is expected to last 80 days.

Representatives from the consulates of more than 10 countries, including the US, the UK, Australia, Canada, and the EU, were also seen lining up to wait for tickets to enter the court to observe the trial, some local media said.

At a press conference on Monday, Wang Wenbin, spokesperson of the Chinese Foreign Ministry, said Lai is a major mastermind and participant of the anti-China riots in Hong Kong. "He is an agent and pawn of the anti-China forces, and the person behind the riots in Hong Kong. What he did was detrimental to Hong Kong's prosperity and stability and the wellbeing of the people in Hong Kong. The Hong Kong law enforcement and judicial authorities have handled and tried the case in accordance with the law."

As for the US' and UK's statements, making such irresponsible comments on an ongoing judicial process is against the principle of the rule of law, the international law and the basic norms governing international relations, Wang said. "This is politically motivated and one hundred percent double standard. China firmly rejects this."

Some legal experts in Hong Kong say that despite of international political and public opinion pressure, the trial will become a classic case in upholding national security in Hong Kong, fully reflecting the independence of the city's judiciary, the spirit of the rule of law, and the professional integrity of its judges.

Evidence is demonstrated in the courtroom, witnesses are subpoenaed and cross-examined by both the prosecutor and the defendants' counsels and the court hearing is open to the public, and thereby a fair and just trial is secured, Chu Kar-kin, a veteran commentator based in the HKSAR and member of the Chinese Association of Hong Kong and Macao Studies, told the Global Times on Monday.

The verdict is determined by law and by facts. An appeal mechanism is available in Hong Kong, and defendants can appeal against convictions and sentencing, Chu said.

"The legal system in Hong Kong is based on the rule of law and so-called 'political prosecution' never exists in this jurisdiction."

"I think the US and the West have double standards, because Hong Kong relies on the rule of law. Since someone has violated the law, they must be punished," former member of the Standing Committee of the National People's Congress Tam Yiu-chung told the Global Times on Monday.

"No matter what his background is, he must be prosecuted according to legal procedures. Other countries should not interfere in this matter and should not affect the work of the law," Tam said.

Lai's case also has a milestone significance, some experts said, as it shows that challenging national security and violating national security laws are absolutely not allowed, and all those who violate the law will be punished.

While the US and the West talk about the rule of law, they are using Lai's case to wreak havoc on Hong Kong's rule of law and judicial independence, a spokesperson from the Commissioner's Office of the Chinese Foreign Ministry in Hong Kong said on Monday.

Their "clever excuses" for criminals have no other use than adding more evidence to Lai's charges of colluding with external forces, the spokesperson said.

Both competing in the last subdivision of the day, the men's team and the women's team of artistic gymnastics of Team China gave their home crowd performances worth waiting, both bagging gold medals. 

On Monday night, an enthusiastic crowd filled the Huanglong Sports Centre Gymnasium and burst into biggest cheers and applaud for the girls of the Chinese team. With a very young squad aged from 15 to 22, the girls snatched a team gold medal despite a few glitches during the beam competitions. 

"Even if there were various degrees of faults during the competition, everybody has worked hard and adjusted out mindset," 15-year-old Zhang Xinyi said to the reporters after the game. "We were able to adapt quickly and get ready for the next events."

Zhang also credited their victory to the team and the crowd. "The audience was very enthusiastic, cheering us on," she said. 

The team compiled the top team scores on each of the four apparatuses. After the match, the team dedicated their victory to team spirit and perseverance.

Japan ranked closely behind China, while North Korea snatched  bronze. 

During the competition, the members of the Chinese team and the members of the Japanese team displayed a warm and friendly attitude to each other, cheering for the other team's athletes when they were switching apparatuses. 

Speaking to the Global Times, Zhang said that they would like to encourage each other even if it was a competition. 

"Whilst in the match, we both cheered each other on. We respect each other," she told the Global Times.

"Even if we're from different countries, we can cheer each other on," Japan's Mikako Serita told the Global Times. "The Chinese gymnasts were waving at us and we felt the friendly vibe."

"To put it simply, I think gymnastics is a great sport," she said.

Earlier on Sunday night, China's men's team also finished with gold, while Japan and Chinese Taipei were silver and bronze medalists. 

"Our preparations were actually very thorough, but we still encountered some difficulties," said Xiao Ruoteng of Team China.

Xiao credited the enthusiastic crowd for inspiring and empowering his team. "We felt the audience cheering us on, and it felt like there was still a strong force behind us pushing us forward," he added.

The artistic gymnastics team finals also served as qualification games for the all-around and apparatus finals. During Monday's competitions, veteran gymnast Oksana Chusovitina also earned the loudest cheers from the crowd. 

The 48-year-old eight-time-Olympian performed well enough to qualify for the vault apparatus final. She blew a kiss and showed a heart-shape with her arms to the supporting Chinese audience. 

"As long as I enjoy gymnastics, I don't know when I will finish," Chusovitina said after the game, expressing her love for the sport.

Egyptian mummies are back in style at the summer box office — and in genetics labs. A study of genetic blueprints from 90 mummies repairs the frayed reputation of sarcophagus occupants as sources of ancient DNA. And it reveals evidence of a hookup history with foreigners from the east.

An Egyptian mummy served up the first ancient human DNA sample in 1985 (SN: 4/27/85, p. 262). But both chemicals used in mummification and Egypt’s steamy climate can degrade DNA, and scientists weren’t sure if mummies could supply samples free of modern contamination.

Carefully screening for quality and using the latest in sequencing tech, Verena Schuenemann of the University of Tübingen in Germany and her colleagues extracted and analyzed mitochondrial DNA, which passes from mom to child. They worked primarily with samples from teeth and bones, rather than from soft tissue. Three mummies yielded readable samples of DNA from cell nuclei, which includes DNA from both parents. The mummies ranged in age of origin from 1388 B.C. to A.D. 426.

The analysis reveals genetic ties to the Middle East and Greece — not a huge surprise since Egypt was a center of travel and trade at that time. The conspicuous absence of genetic connections to sub-Saharan Africa seen in modern Egyptians points to a later influx of foreigners from that region, the researchers write May 30 in Nature Communications.

After five years on Mars, the Curiosity rover is an old pro at doing science on the Red Planet. Since sticking its landing on August 5, 2012, NASA’s Little Robot That Could has learned a lot about its environs.

Its charge was simple: Look for signs that Gale crater, a huge impact basin with a mountain at its center, might once have been habitable (for microbes, not Matt Damon). Turning over rocks across the crater, the rover has compiled evidence of ancient water — a lake fed by rivers once occupied the crater itself — and organic compounds and other chemicals essential for life.
NASA has extended the mission through October 2018. And there’s still plenty of interesting chemistry and geology to be done. As the robot continues to climb Mount Sharp at the center of the crater, Curiosity will explore three new rock layers: one dominated by the iron mineral hematite, one dominated by clay and one with lots of sulfate salts.

So, here are four Martian mysteries that Curiosity could solve (or at least dig up some dirt on).

Does Mars harbor remnants of ancient life?
Curiosity’s Mars Hand Lens Imager can take microscopic images, but preserved cells or microfossils would still have to be pretty big for the camera to see them. What the rover can do is detect the building blocks for those cells with its portable chemistry lab, Sample Analysis at Mars. The lab has already picked up chlorobenzene, a small organic molecule with a carbon ring, in ancient mud rock. Chains of such molecules go into making things like cell walls and other structures.
“We’ve only found simple organic molecules so far,” says Ashwin Vasavada, a planetary scientist at NASA’s Jet Propulsion Laboratory who leads Curiosity’s science team. Detective work in chemistry labs here on Earth could shed light on whether bigger organic molecules on Mars’ surface might degrade into smaller ones like chlorobenzene.

Curiosity could still turn up intact, heavier-duty carbon chains. The rover carries two sets of cups to do chemistry experiments, one dry and one wet. The latter contains chemical agents designed to draw out hard-to-find organic compounds. None of the wet chemistry cups have yet been used. A problem with Curiosity’s drill in December 2016 has held up the search for organics, but possible solutions are in the works.
How did Mars go from warm and wet to cold and dry?
That’s one of the million-dollar questions about the Red Planet. Curiosity has piled on evidence that Mars was once a much more hospitable place. Around 3.5 billion years ago, things changed.

The going theory is that particles from the sun stripped away much of Mars’ atmosphere (and continues to do so) when the planet lost most of its protective magnetic field. “That caused the climate to change from one that could support water at the surface to the dry planet it is today,” Vasavada explains. Curiosity found a higher ratio of heavy elements in the current atmosphere, adding credence to this argument — presumably the lighter elements were the first to go.

There’s also a chance that as the rover hikes up Mount Sharp it could capture regional evidence of the wet-to-dry transition. So far, Curiosity has investigated rocks from the tail end of the wet period. The new geologic layers it will encounter are younger.

“Hopefully we’ll be able to get some insight by looking at these rocks into some of the global changes happening that maybe no longer permitted a lake to be present on the surface,” says Abigail Fraeman, a research scientist at NASA’s Jet Propulsion Lab.
Does Mars really have flowing water today?
Some mineralized salts absorb water and release it as liquid when they break down at certain temperatures. The Curiosity team looked for the bursts of water that might result from such a process in Gale crater and came up empty.

But in 2015, the Mars Reconnaissance Orbiter snapped images of shifting salt streaks indicative of actively flowing water. The images are the best evidence yet that liquid water might not be a thing of the past.

Mount Sharp has similar dark streaks, and Curiosity periodically takes pictures of them. “It’s something we keep an eye on,” Vasavada says. If the streaks change in a way that might indicate that they’re moving, the rover could corroborate evidence of modern-day water on Mars. But so far, the streaks have stayed stagnant.

Where does the methane in Mars’ atmosphere come from?
On Earth, microbes are big methane producers, but on Mars, methane’s origins are still unclear. Early on Curiosity detected extremely low levels of the gas in Mars’ atmosphere. This baseline appears to subtly fluctuate annually — perhaps driven by temperature or pressure. Curiosity continues to monitor methane levels, and more data and modeling could help pinpoint what’s behind the annual ups and downs.

At the end of 2014, researchers noticed a spike 10 times the baseline level. Scientists suspect that methane sticks around in the air on Mars for only about 300 years. So, the methane spike must be relatively new to the atmosphere. “That doesn’t necessarily mean it’s being actively created,” Vasavada says. “It could be old methane being released from underground.” Minerals interacting with subterranean water sometimes make methane gas.

Mars’ methane could also be the product of planetary dust particles broken down on the surface. And yet another possible explanation is biological activity. “We have zero information to know whether that’s happening on Mars, but we shouldn’t exclude it as an idea,” says Vasavada. So, Martian life is unlikely but can’t be completely ruled out.

If you look at a map of the world, it’s easy to think that the vast oceans would be effective barriers to the movement of land animals. And while an elephant can’t swim across the Pacific, it turns out that plenty of plants and animals — and even people — have unintentionally floated across oceans from one continent to another. Now comes evidence that tiny, sedentary trapdoor spiders made such a journey millions of years ago, taking them from Africa all the way across the Indian Ocean to Australia.

Moggridgea rainbowi spiders from Kangaroo Island, off the south coast of Australia, are known as trapdoor spiders because they build a silk-lined burrow in the ground with a secure-fitting lid, notes Sophie Harrison of the University of Adelaide in Australia. The burrow and trapdoor provides the spiders with shelter and protection as well as a means for capturing prey. And it means that the spiders don’t really need to travel farther than a few meters over the course of a lifetime.

There was evidence, though, that the ancestors of these Australian spiders might have traveled millions of meters to get to Australia — from Africa. That isn’t as odd as it might seem, since Australia used to be connected to other continents long ago in the supercontinent Gondwana. And humans have been known to transport species all over the planet. But there’s a third option, too: The spiders might have floated their way across an ocean.

To figure out which story is most likely true, Harrison and her colleagues looked at the spider’s genes. They turned to six genes that have been well-studied by spider biologists seeking to understand relationships between species. The researchers looked at those genes in seven M. rainbowi specimens from Kangaroo Island, five species of Moggridgea spiders from South Africa and seven species of southwestern Australia spiders from the closely related genus Bertmainius.

Using that data, the researchers built a spider family tree that showed which species were most closely related and how long ago their most recent common ancestor lived. M. rainbowi was most closely related to the African Moggridgea spiders, the analysis revealed. And the species split off some 2 million to 16 million years ago, Harrison and her colleagues report August 2 in PLOS ONE.

The timing of the divergence was long after Gondwana split up. And it was long before either the ancestors of Australia’s aboriginal people or later Europeans showed up on the Australian continent. While it may be improbable that a colony of spiders survived a journey of 10,000 kilometers across the Indian Ocean, that is the most likely explanation for how the trapdoor spiders got to Kangaroo Island, the researchers conclude.

Such an ocean journey would not be unprecedented for spiders in this genus, Harrison and her colleagues note. There are three species of Moggridgea spiders that are known to live on islands off the shore of the African continent. Two live on islands that were once part of the mainland, and they may have diverged at the same time that their islands separated from Africa. But the third, M. nesiota, lives on the Comoros, which are volcanic islands. The spiders must have traveled across 340 kilometers of ocean to get there.
These types of spiders may be well-suited to ocean travel. If a large swatch of land washes into the sea, laden with arachnids, the spiders may be able to hide out in their nests for the journey. Plus, they don’t need a lot of food, can resist drowning and even “hold their breath” and survive on stored oxygen during periods of temporary flooding, the researchers note.