News
Unusual molecule found in atmosphere on Saturn’s moon Titan
Saturn’s largest moon, Titan, is the only moon in our solar system that has a thick atmosphere. It’s four times denser than Earth’s. And now, scientists have discovered a molecule in it that has never been found in any other atmosphere, CNN has reported.
The particle is called cyclopropenylidene, or C3H2, and it’s made of carbon and hydrogen. This simple carbon-based molecule could be a precursor that contributes to chemical reactions that may create complex compounds. And those compounds could be the basis for potential life on Titan, the CNN report says.
The molecule was first noticed as researchers used the Atacama Large Millimeter/submillimeter Array of telescopes in Chile. This radio telescope observatory captures a range of light signatures, which revealed the molecule among the unique chemistry of Titan’s atmosphere.
The study published earlier this month in the Astronomical Journal.
“When I realized I was looking at cyclopropenylidene, my first thought was, ‘Well, this is really unexpected,’” said lead study author Conor Nixon, planetary scientist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, in a statement.
Cyclopropenylidene has been detected elsewhere across our galaxy, mainly in molecular clouds of gas and dust including the Taurus Molecular Cloud. This cloud, where stars are born, is located 400 light-years away in the Taurus constellation. In these clouds, temperatures are too cold for many chemical reactions to occur.
Cyclopropenylidene has now been detected only in the Taurus Molecular Cloud and in the atmosphere of Titan.
But finding it in an atmosphere is a different story. This molecule can react easily when it collides with others to form something new. The researchers were likely able to spot it because they were looking through the upper layers of Titan’s atmosphere, where the molecule has fewer gases it can interact with.
“Titan is unique in our solar system,” Nixon said. “It has proved to be a treasure trove of new molecules.”
Cyclopropenylidene is the second cyclic or closed-loop molecule detected at Titan; the first was benzene in 2003. Benzene is an organic chemical compound composed of carbon and hydrogen atoms. On Earth, benzene is found in crude oil, is used as an industrial chemical and occurs naturally in the wake of volcanoes and forest fires.
Cyclic molecules are crucial because they form the backbone rings for the nucleobases of DNA, according to NASA.
“The cyclic nature of them opens up this extra branch of chemistry that allows you to build these biologically important molecules,” said study coauthor Alexander Thelen, an astrobiologist at Goddard, in a statement.
When the researchers discovered cyclopropenylidene in Titan’s atmosphere, they looked over data captured by NASA’s Cassini mission. The spacecraft performed 127 close flybys of Titan between 2004 and 2017. Cassini’s mass spectrometer detected a chemical signature of the same molecule, the researchers found.
“It’s a very weird little molecule, so it’s not going be the kind you learn about in high school chemistry or even undergraduate chemistry,” said c. Malaska was not involved with this study, but he researches Titan.
“Every little piece and part you can discover can help you put together the huge puzzle of all the things going on there.”
And discovering cyclopropenylidene on Titan adds to the moon’s intrigue.
Dr. (Ms.) Siri Walt, Ambassador Extraordinary and Plenipotentiary of Switzerland to Sri Lanka, met President Anura Kumara Dissanayake at the Presidential Secretariat this morning (09).
During the meeting, Ambassador Walt extended her congratulations to President Dissanayake on his recent election victory, conveying best wishes on behalf of the Government and people of Switzerland.
Ambassador Walt reaffirmed Switzerland’s commitment to supporting Sri Lanka, particularly through the ongoing IMF program, and expressed Switzerland’s readiness to assist in President Dissanayake’s efforts to combat corruption. She also emphasized Switzerland’s expertise in foreign direct investments (FDI) and tourism, offering assistance to Sri Lanka in these sectors to promote economic growth.
Further areas of collaboration discussed included constitutional reforms and labour migration, with Ambassador
Business
President discusses enhancing revenue and efficiency with Sri Lanka Customs and Inland Revenue officials
President Anura Kumara Dissanayake held a key meeting with senior officials from both the Sri Lanka Customs Department and the Inland Revenue Department at the Presidential Secretariat today (09). The discussions centered on strategies to enhance revenue generation and improve operational efficiency within both departments, in line with the government’s broader economic mandate.
During the meeting, officials from both departments presented the challenges they face in managing revenue and tackling tax evasion. They stressed the importance of strengthening coordination between the Inland Revenue Department (IRD) and Customs to effectively combat these issues. It was highlighted that better collaboration would ensure more robust enforcement of tax laws and prevent tax leakage, further boosting the country’s revenue collection.
Representing the Sri Lanka Customs Department were P B S C Nonis, Director General of Customs; Mrs. H W S P Karunaratne, Additional Director General of Customs; . C S A Chandrasekara, Additional Director General of Customs; W S I Silva, Additional Director General of Customs; S P Arukgoda, Additional Director General of Customs; J M M G Wijeratna Bandara, Additional Director General of Customs; A. W. L. C. Weerakoon, Senior Deputy Director and M R G A B Muthukuda, Chief Financial Officer, among other officials.
From the Inland Revenue Department, Mrs. W S Chandrasekara, Commissioner General; B K S Shanta, Deputy Commissioner General; Mrs. J A D D B K Siriwardena, Deputy Commissioner General; Mrs. J D Ranasinghe, Deputy Commissioner General; D M N S B Dissanayake, Deputy Commissioner General; H H S Samantha Kumara; and Ms. T M S Thennakone, Senior Commissioner, participated in the discussions.
News
Vietnamese Ambassador meets President; explores possibility of enhancing direct flights between Vietnam and Sri Lanka
The Ambassador of Vietnam to Sri Lanka, Ms Trinh Thi Tam, paid a courtesy call on President Anura Kumara Dissanayake at the Presidential Secretariat this afternoon (09).
During the meeting, Ambassador Tam conveyed her congratulations on behalf of the Government of Vietnam and expressed optimism for continued cooperation between the two nations.
Highlighting Vietnam’s achievements in foreign direct investment (FDI) and trade, President Dissanayake requested Vietnam’s assistance in fostering these sectors in Sri Lanka.
The discussion also explored the possibility of enhancing direct flights between Vietnam and Sri Lanka, with a focus on strengthening Buddhist ties and cultural connections. Ambassador Tam further pledged to explore opportunities to promote Sri Lanka as a key destination for Vietnamese tourists, thereby expanding people-to-people connections and boosting tourism.
Swiss ambassador meets President Dissanayake
President discusses enhancing revenue and efficiency with Sri Lanka Customs and Inland Revenue officials
Vietnamese Ambassador meets President; explores possibility of enhancing direct flights between Vietnam and Sri Lanka
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