Winter solstice marks the shortest day and longest night of the year, and it falls at exactly 10:27 p.m. ET on Thursday in the Northern Hemisphere. Here are five ways it's celebrated around the world.

The bloodshed took place in the philosophy department building of Charles University, where the shooter was a student, police said said. The gunman also died, authorities said.

Gaza's tiny Christian community worries about their survival amid the war. The EU makes a breakthrough with new migration rules.

A new study has examined the potential ramifications of declining an invitation for a social outing, and found that people tend to overestimate just how much it matters.