Alexei Navalny was raised in preliminary prisoner swap talks before his death: Official
Russian opposition leader Alexei Navalny attends a rally in support of political prisoners in Prospekt Sakharova Street in Moscow, Sept. 29, 2019. (Sefa Karacan/Anadolu Agency via Getty Images) (NEW YORK) — After an ally of Alexei Navalny
Life on Mars: How volunteers in NASA's Mars simulator will live for a year
Bill Stafford/NASA (NEW YORK) — NASA is offering volunteers an otherworldly experience here on Earth where participants eat, live and communicate as if they were over 200 miles away in space. Paving the way for future human