The male-specific Y-chromosome is shrinking at different rates across species — but there is no risk of men being extinct, says a new study.

The US on Thursday said it has neither sought nor received assurances that the Pakistani army will not stage a coup, even as it made it clear that it supports a 'civilian-led government' in the cou

The US and the UN have strongly condemned the terrorist attack in Pakistan's Khyber Agency that killed over 30 people and injured 60 others.

"The United States strongly condemns the bombing at a mar

US forces have rescued six more Iranian sailors in distress after freeing 13 Iranians from pirates earlier this week, the Pentagon said on Tuesday.

The rescue took place several hours before dawn on

The US has condemned the death sentence handed to American-Iranian ex-Marine Amir Mirzai Hekmati in Iran and asked Tehran to release him immediately.

An Iranian court has sentenced to death Hekmati,

Older adults who are starting to have problems with memory may benefit from small amounts of nicotine therapy, according to a US study published on Monday.

Astronomers should start hunting for planets like the Tatooine in the science fiction series Star Wars, as earth-like worlds could exist in the habitable zones around binary systems, scientists say.

Mitt Romney on Wednesday cemented his standing as the Republican front-runner for the White House by sweeping to victory in the New Hampshire primary, turning back a ferocious assault from rivals.

R

A baby born with his organs outside his body has undergone an exceptional surgery to put them back inside his abdominal cavity.

Hayes Davis’ first ultrasound results seemed to take longer than the ot

First lady Michelle Obama is challenging assertions she's forcefully imposed her will on White House aides, saying she's tired of people portraying her as 'some kind of angry black woman'.

Mrs. Obama