Merrit Kennedy

Different neurological conditions like autism, schizophrenia and bipolar disorder appear to have more in common than scientists thought they did. A new study finds that they have important similarities at a molecular level.

And understanding the molecular basis of those disorders could help in developing better treatments.

Twitter says it has turned a profit for the first time last quarter, sending its shares surging. As of mid-morning Thursday its shares were up nearly 23 percent.

By raining down laser pulses on some 770 square miles of dense forest in northern Guatemala, archaeologists have discovered 60,000 Maya structures that make up full sprawling cities.

And the new technology provides them with an unprecedented view into how the ancient civilization worked, revealing almost industrial agricultural infrastructure and new insights into Maya warfare.

Updated at 10:10 p.m. ET

The Canadian national anthem is now more gender-neutral, after a bill that changes the lyrics passed the country's Senate.

The second line of "O Canada," which has said the nation inspires patriotism "in all thy sons," will now read "in all of us."

Nashville Mayor Megan Barry has admitted that she had an extramarital affair with the former head of her security detail.

"I'm embarrassed, and I am sad, and I am so sorry for all the pain that I have caused my family and his family," she said at a news conference Wednesday. "I know that God will forgive me, but that Nashville doesn't have to. ... I hope that I can earn your trust back and that you will forgive me."

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