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SL scientist joins NASA’s simulated Mars mission at Johnson Space Center

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Piyumi Wijesekara

Sri Lanka’s Piyumi Wijesekara is among the crew of four volunteers, selected by NASA, to participate in a simulated mission to Mars within a habitat at the agency’s Johnson Space Center in Houston.

Jason Lee, Stephanie Navarro, Shareef Al Romaithi, and Wijesekara will step into the agency’s Human Exploration Research Analog, or HERA, on Friday, 10 May. Once inside, the team will live and work like astronauts for 45 days. The crew will exit the facility on June 24 after they “return” to Earth. Jose Baca and Brandon Kent are this mission’s alternate crew members.

HERA enables scientists to study how crew members adapt to isolation, confinement, and remote conditions before NASA sends astronauts on deep space missions to the Moon, Mars, and beyond. Crew members will carry out scientific research and operational tasks throughout their simulated mission to the Red Planet, including a “walk” on Mars’s surface using virtual reality. They will also experience increasing communication delays lasting up to five minutes each way with Mission Control Center as they “near” Mars.

This crew is the second group of volunteers to participate in a simulated Mars mission in HERA this year. The most recent crew completed its HERA mission on March 18. Two other missions will follow this year, with the final HERA crew slated to wrap up on Dec. 20.

In a first for HERA, one crew member, Shareef Al Romaithi, hails from the United Arab Emirates (UAE) and will participate in the mission through a partnership between NASA and the UAE’s Mohammed Bin Rashid Space Centre (MBRSC).

As with the previous HERA mission this year, NASA’s Human Research Program is conducting 18 human health studies during the mission. The experiments will evaluate the physiological, behavioral, and psychological responses of crew members in an environment similar to what astronauts will face on a trip to Mars. Seven of these studies are collaborations with the MBRSC and the European Space Agency (ESA). Insights gleaned from the studies will allow researchers to develop and test strategies aimed at helping astronauts overcome obstacles on long missions deep into space.

Wijesekara is a postdoctoral research scientist in the Radiation Biophysics Laboratory at NASA Ames Research Center in California’s Silicon Valley. Her research focuses on developing tissue models to investigate the effects of spaceflight stressors, including ionizing radiation and lunar dust on the human respiratory system.

Wijesekara earned her bachelor’s degree in bioengineering from the University of California, San Diego, and her master’s and doctorate degrees in biomedical engineering from Carnegie Mellon University in Pittsburgh, Penn. Her doctoral research focused on stem cell and organ engineering, with an emphasis on engineering lung models that mimic human lung physiology, to study respiratory diseases.



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486 dead, 341 missing, 171,778 displaced as at 0600hrs today [05]

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The situation report issued by the Disaster Management Center at 0600hrs today [5th December] confirms that 486 persons have died and another 341 persons are missing after the devastating weather conditions in the past week.

171,778 persons have been displaced and have taken refuge at 1,231 safety centers established by the government.

 

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Media slams govt.’s bid to use Emergency to silence critics

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Sunil Watagala

Media organisations have denounced Deputy Minister of Public Security and Parliamentary Affairs Sunil Watagala after he urged law enforcement authorities to use emergency regulations to take action against those posting allegedly defamatory content about the President and senior ministers on social media.

The Sri Lanka Working Journalists Association (SLWJA) yesterday issued a strongly worded statement condemning Watagala’s remarks, warning that they posed a direct threat to freedom of expression and media rights, particularly at a time when the country is struggling through a national disaster.

Watagala made the controversial comments on 2 December during a meeting at the Malabe Divisional Secretariat attended by government officials and Deputy Media Minister Dr. Kaushalya Ariyarathna. During the discussion, the Deputy Minister claimed that a coordinated effort was underway to spread distorted or false information about the disaster situation through physical means, social media, and even AI-generated content. He also alleged that individuals based overseas were contributing to such activity.

According to the SLWJA, Watagala went further, directing police officers present at the meeting to treat those posting such content “not merely as suspects but as offenders” and to take action against them under emergency regulations currently in force.

The SLWJA accused the government of abandoning the democratic principles it once campaigned on, noting that individuals who publicly championed free speech in the past were now attempting to clamp down on it. The association said this was not an isolated incident but part of a pattern of growing state pressure on journalists and media platforms over the past year.

It warned that attempts to criminalise commentary through emergency powers especially during a disaster constituted a grave violation of constitutional rights. The union urged the government to respect democratic freedoms and refrain from using disaster-related powers to silence criticism.

In a separate statement, Internet Media Action (IMA) also expressed “strong objection” to Watagala’s comments, describing them as a “serious threat to freedom of expression”, which it said is a fundamental right guaranteed to all Sri Lankan citizens.

The IMA said Watagala’s assertion that “malicious character assassination attacks” were being carried out against the President and others through social media or other media channels, and that such acts should attract severe punishment under emergency law, represented “an abuse of power”. The organisation also criticised the Deputy Minister’s claim that false opinions or misrepresentations whether physical, online, or generated by AI could not be permitted.

Using emergency regulations imposed for disaster management to suppress political criticism amounted to “theft of fundamental rights”, the statement said, adding that the move was aimed at deliberately restricting dissent and instilling fear among social media users.

“Criticism is not a crime,” the IMA said, warning that such rhetoric could lead to widespread intimidation and self-censorship among digital activists and ordinary citizens.

The group demanded that Watagala withdraw his statement unconditionally and insisted that freedom of expression cannot be curtailed under emergency laws or any other legal framework. It also called on the government to clarify its stance on the protection of fundamental rights amid increasing concerns from civil society.

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Cardinal calls for compassionate Christmas amid crisis

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Archbishop of Colombo

Archbishop of Colombo, Cardinal Malcolm Ranjith, has called on Sri Lankans to observe this Christmas with compassion and restraint, as the nation continues to recover from one of its worst natural disasters in recent memory.

In his message, the Colombo Archbishop has highlighted the scale of the crisis, noting that more than 1.5 million people have been displaced, while an “uncounted number” remain buried under debris in the hill country following landslides and severe flooding.

“It is a most painful situation,”

he has written acknowledging the difficulty of celebrating a season traditionally associated with joy while thousands are mourning lost loved ones, living in refugee centres, or left with nothing but the clothes they were wearing.

The Cardinal has urged the faithful to temper excessive celebrations and extravagance, instead focusing on helping those affected. “Celebrate, by all means, yes, but make it a moment of spiritual happiness and concern for the needs of those who suffer,” he said. “Assist as much as possible those who lost their loved ones, their homes, and their belongings.”

He has called for a Christmas marked by love, sharing, and solidarity, describing it as an opportunity to make the season “a deeply spiritual and joyful experience.”

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