Nobel prize-winning Egyptian-American chemist Ahmed Zewail, who served as a science and technology adviser to U.S. President Barack Obama, died Tuesday in the United States. He was 70.

Zewail, a naturalized U.S. citizen, won the Nobel prize for chemistry in 1999 for his groundbreaking work in the study of chemical reactions in extremely short timescales.

Young people today are not having as much sex as previous generations, despite the widespread availability of dating sites and apps and more accepting attitudes about premarital sex, researchers said Tuesday.

The study focused on millennials, the generation of people born in the 1990s, and found they were the most sexually inactive group since the Depression era.

Ultra-Orthodox Jewish schools in Israel will have access to state funds without having to teach core subjects such as maths, as parliament on Tuesday reversed proposed reforms.

Paris city workers on Tuesday set to scrubbing a monumental bronze statue which has become a battered rallying point for France's secular republic after a string of terror attacks.

Pope Francis on Tuesday appointed a special commission to examine the role of female deacons in the Church, in a potentially historic opening on the possibility of women joining the clergy.

From "The Period Song" to "How I Raped Your Mother", one all-women Indian production team is challenging conservative attitudes with no-holds-barred satirical videos that are causing a stir online.

Sunni Islamist radicals in Yemen have blown up a 16th century mosque housing the shrine of a revered Sufi scholar in the city of Taez, a local official said Sunday.

A French prosecutor on Monday dismissed a probe into allegations that Cardinal Philippe Barbarin covered up the sexual abuse of Scouts, in a case which shook the country's Catholic Church.

Pope Francis celebrated mass Sunday with over 1.5 million pilgrims in a vast sun-drenched field, wrapping up an emotionally charged trip to Poland with some choice technological metaphors.

Having to wear ski jackets in Riyadh is unheard of, but a new snow park in the Saudi capital has made them a must despite outside temperatures exceeding 45 Celsius.