Azerbaijan's leader criticized Russia's response to the crash of a passenger plane that Azerbaijani officials said was most likely hit by Russian air defenses.
ISS astronauts, including two scheduled to return months ago, held a cookie-decorating contest in zero gravity and built a reindeer out of storage bags.
The danger and hardship are worsening day by day for civilians in eastern Ukraine. However, they resist leaving the places that have become their homes.
Small genetic alterations could help the avian influenza virus enter cells in the upper respiratory tract, the CDC said. But there is no sign that the mutations are widespread in nature.
Israel and Hezbollah have exchanged attacks and accusations of violations. Implementation of the agreement has been slow. But the truce brought some calm to a tumultuous region.