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**Top Stories**
* **War in Ukraine: Russia intensifies attacks on key cities**
Russian forces have stepped up their bombardment of major Ukrainian cities, including Kyiv, Kharkiv, and Mariupol. The attacks have caused widespread damage and civilian casualties. Ukraine’s President Volodymyr Zelenskyy has called for more international support to defend the country.
**Read more:** https://www.bbc.com/news/world-europe-60636179
* **COVID-19: Omicron subvariant BA.2 becomes dominant**
The Omicron subvariant BA.2 has become the dominant strain of COVID-19 worldwide. It is more transmissible than the original Omicron variant but appears to cause less severe illness. Health experts are urging people to stay up-to-date with their vaccinations and boosters.
**Read more:** https://www.who.int/news-room/fact-sheets/detail/coronavirus-(covid-19)-variants
* **US: Biden announces release of strategic oil reserves**
US President Joe Biden has announced the release of 1 million barrels of oil per day from the Strategic Petroleum Reserve over the next six months. This move is aimed at reducing gas prices, which have been rising due to supply chain disruptions and the war in Ukraine.
**Read more:** https://www.whitehouse.gov/briefing-room/statements-releases/2022/03/31/president-biden-announces-release-of-1-million-barrels-per-day-from-the-strategic-petroleum-reserve-for-six-months/
**Other News**
* **SpaceX launches 46 Starlink satellites**
SpaceX has successfully launched 46 Starlink satellites into orbit. These satellites will add to SpaceX’s growing constellation of satellites, which provide high-speed internet access to remote areas.
**Read more:** https://www.spacex.com/launches/sl4-15/
* **New study finds link between air pollution and heart disease**
A new study published in the journal JAMA Internal Medicine has found a link between exposure to air pollution and an increased risk of heart disease. The study suggests that air pollution may damage the heart and blood vessels, leading to cardiovascular problems.
**Read more:** https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/2788626
* **Scientists make breakthrough in fusion energy research**
Scientists at Lawrence Livermore National Laboratory in California have made a significant breakthrough in fusion energy research. They have successfully achieved a sustained fusion reaction that produced more energy than it consumed. This is a major step towards developing a clean and safe source of energy for the future.
**Read more:** https://www.llnl.gov/news/national-ignition-facility-achieves-fusion-ignition.
