NASA's latest announcement that liquid water "flows intermittently on present-day Mars" is huge news, topping off an important discovery two years ago when NASA scientists said an analysis of drilled rock samples collected by the Curiosity rover shows that ancient Mars could have supported living microbes.
With progress fighting ISIS moving slowly, and Russian fighters entrenched in Eastern Ukraine, President Barack Obama returns to the United Nations General Assembly this week anxious to shore up international support for U.S. plans to counter various global crises.
Asians are on pace to become the largest immigrant group in the the United States. Meanwhile, the share of new arrivals who are Hispanic is smaller than it was 50 years ago. And the percentage of the total U.S. population born outside this country was higher in 1890 than it is today.
Kayla Gissendaner was only 7 when her father was stabbed in the neck and back. She lost her best friend when he died, and as she grew up she grasped the shocking reality of her family: Her mother had arranged the gruesome murder. Now she is pleading for her mother's life to be spared from execution.