At least 21 Palestinians were killed in Israeli airstrikes in the Gaza Strip on Saturday, said Palestinian security and medical sources.An Israeli warplane struck a residential house in the al-Tuffah neighborhood east of Gaza City with at least one missile, Palestinian security sources told Xinhua. (Gaza-Hamas-Israel)TEHRAN -- Iran on Saturday morning launched research satellite Chamran-1 into orbit, the semi-official Fars news agency reported.The satellite was launched by the homegrown three-stage solid-fuel Qaem-100 rocket, according to the report. (Iran-Satellite-Launch)CAIRO -- At least three people were killed and 49 others injured on Saturday in a two-train collision in Sharqiya Province north of the Egyptian capital Cairo, according to Egypt's Ministry of Health.The health conditions of 44 injured individuals were stable, and were anticipated to be discharged from the hospitals in the coming hours, said the ministry in a statement, noting that five other individuals with unstable conditions r equired further monitoring. (Egypt-Train-Collision)ALGIERS -- Algerian President Abdelmadjid Tebboune has won a second term after securing 84.3 percent of votes in last week's election, according to final results announced on Saturday by the country's Constitutional Court.The court, responsible for validating the election results, held a press briefing aired live on state-run television after reviewing records from polling stations inside and outside Algeria, as well as appeals submitted by the candidates. (Algeria-Presidential Election) EnditemSource: The Namibia Press Agency