WORLD

The man's identity has not yet been revealed by authorities, but some facts have begun to emerge.

The three countries also scored low on the U.N. world happiness rankings for 2016. Ukraine was no. 132, Haiti came in at no. 145 and South Sudan was no. 147.

ISIS said the suspect was "executing the operation in response to calls to target citizens of coalition nations."

The survey of polycyclic aromatic hydrocarbon has revealed that the rate of star formation in the early universe may have been much higher than previously thought.

Russia's top diplomat said Thursday that reports of election interference in Europe were "silly."

Until now, astronomers thought that only a larger, more massive star was capable of evaporating parts of the protoplanetary disk of smaller neighbors.

The 3D map of space dust was created using data collected by the Pan-STARRS telescopes in Hawaii and the Sloan Digital Sky Survey in New Mexico.

Queen Elizabeth II was present in her residence at the Buckingham Palace when the Westminster terror attack took place.

London's Metropolitan Police revised the death toll down to four, including the attacker.

A series of experiments on mice has shown that lungs play a crucial role in blood production — a function that had hitherto been ascribed solely to the bone marrow.

U.S. prosecutors are reportedly building a case that would target Chinese middlemen who allegedly helped the reclusive East Asian nation organize the multimillion-dollar theft.

After working without a contract for almost a year, AT&T workers have come out on the streets in California and Nevada.

Research by scientists from the University of Cambridge and the Natural History Museum in London suggests dinosaurs originated in the Northern Hemisphere, contrary to popular belief.

Astronomers have observed giant magnetic fields — extending over millions of light-years — created due to collisions between galaxy clusters.

South Korea's military is closely monitoring Pyongyang's activity as Kim Jong Un's regime conducted a missile launch Wednesday.

Women's rights have become a particularly hot topic worldwide — with organized marches, panels and activist events soaring as progressives push for an equal rights agenda.

A new type of frog found in Ecuador is super colorful and doesn’t look like any other.

Otters are smarter than you think — they might have been using tools millions of years ago.

Ellwood was celebrated online for trying to save the life of the police officer who was stabbed Wednesday in London.

The victims include South Korean tourists, French students and two Romanians.

The terrorist attack outside of Britain's Parliament building led officials in other regions to increase safeguards on potential targets, despite a lack of apparent security threat.

The officers accused of misconduct have been suspended from their positions while their cases are being investigated by the local law enforcement. 

These tiny, newly discovered crabs can climb trees, so hopefully they won’t haunt your nightmares.

The U.K. international terror threat level was listed as "severe" during Wednesday's attack.

The Royal Standard was flying over Buckingham Palace in the wake of the incident, signaling the Queen was in residence.

A primary school stampede left two children dead and almost 20 injured.

Wales will now consider allowing doctors to prescribe the anti-HIV drug to healthy patients.

The attacker stabbed a police officer and was later killed after ramming a car into a London crowd. Metropolitan police officials have called the incident an act of terrorism.

The proposal would compensate those convicted of homosexuality with a lump sum of roughly $3,200 and an additional $1,600 for every year the men spent behind bars.