VATICAN-FAMILIES — In a sweeping document on family life that opens a door to divorced and civilly remarried Catholics, Pope Francis insists that church doctrine cannot be the final word in answering tricky moral questions and that Catholics must be guided by their own informed consciences. 

BRUSSELS ATTACKS —The arrest of five men suspected of links to the Brussels bombings, including the last known fugitive in the Nov. 13 Paris attacks, raises new questions about the extent of the Islamic State cell believed to have carried out the intertwined attacks that left 162 people dead in two countries. 

EARTH'S WOBBLE — A new NASA study sees the wobble of the Earth on its polar axis is shifting. The scientists say it is because ice sheets are melting and that changes the balance of mass on Earth. They say it is a harmless but profound effect that human-caused climate change has on Earth. 

OFFSHORE ACCOUNTS-INVESTIGATION — British Prime Minister David Cameron faces mounting pressure over his involvement in offshore investments after he finally admits he benefited from his father's Panama-registered trust, an entity exposed by this week's massive data leak at a law firm specializing in global tax avoidance. 

SPACE STATION — SpaceX has resumed station deliveries for NASA with the launch of a futuristic pop-up room, the first ever built for astronauts. Bigelow Aerospace is providing the pioneering pod — which inflates to the size of a small bedroom — as a testbed for orbiting rental property, and moon and Mars habitats.