In the HBO series “Game of Thrones,” a great wall of ice helps repel giants and the undead. Could such a structure be possible? A new study suggests that, no, it’s not realistic, because without magic, such a barrier would fall rapidly.

TV
You know “A New Hope,” “The Empire Strikes Back” and “Return of the Jedi.”
PBS said in a statement Wednesday it had engaged an outside law firm to investigate “troubling allegations” against the host. It said it interviewed witnesses and Smiley and uncovered charges of conduct “that is inconsistent with the values and standards of PBS.”
In honor of “Star Wars: The Last Jedi’s” Porgs, here’s a look at characters who nearly ruined installments of popular movie franchises or tarnished our memories of beloved TV shows.
Jimmy Kimmel was crying from the first moment of his monologue Monday night as he pleaded with Congress to restore and improve children’s health coverage.
The 10,000-square-foot attraction features an event room, a gift shop, a wedding chapel, arcade games and four bowling lanes, but it’s the “Twilight Zone” props and scenes painted on the walls in glorious black-light black-and-white that’ll most vividly jog fans’ memories.