WORLD

Tensions between Russia and Ukraine escalated this week after President Vladimir Putin accused Ukraine of sabotage plans in Crimea.

Thousands partied along Havana's Malecon seafront into the early hours of Saturday, celebrating the retired Cuban leader turning 90.

An experiment has confirmed that the "proton radius puzzle" discovered in 2010 is very real — a finding that may be the evidence of a new fundamental force.

Mefenamic acid, a drug commonly used to relieve menstrual pain, has been shown to reverse symptoms of the disease in mice, according to a new research.

The European Space Agency has released a photograph of the location where the mission’s Schiaparelli module will land on Oct. 19, if all goes as planned.

The Barcelona star had announced his decision to quit the national soccer team after Argentina’s second consecutive Copa America final loss to Chile in June.

Although scientists have been looking for clues to the composition of dark matter for years, the hunt has — so far — been frustratingly fruitless.

Malaysian police detained nine militants, including two suspected of carrying out a grenade attack at a nightspot on the outskirts of Kuala Lumpur in June.

The swim attire, commonly worn by Muslim women to the beach, is getting banned in Cannes, France after mayor claims suits "disrupt public order."

The Hubble space telescope has captured two tiny dwarf galaxies — Pisces A and B — entering the Local Group of galaxies.

The German chancellor came fourth in a ranking of politicians over voter backlash to her refugee policy.

Russian President Vladimir Putin appointed a former diplomat his new Kremlin chief of staff after his long-time ally, Sergei Ivanov had asked to quit.

Ukraine has put its forces on combat alert following Russian President Vladimir Putin’s accusations that Kiev was trying to provoke a conflict over Crimea.

The cost of removing pollutants from the waters surrounding the Great Barrier Reef is likely to top 8 billion Australian dollars, a Queensland government commissioned report said.

The pageant is due to be held in the capital, Manila, in January.

A new study compared the brain’s response to the body’s circadian clock and the drive to sleep to conclude that parts of the brain dealing with problem solving and concentration were more affected.

Collecting admissible evidence in anti-terrorism investigations is difficult, according to a Canadian law enforcement official.

Researchers are looking for cracks in Einstein’s general theory of relativity by studying regions devoid of normal matter — cosmic voids.

Attorney Tasnime Akunjee said the family of Kadiza Sultana learned of her death in Raqqa, Syria, a few weeks ago.

A series of explosions have rocked Thailand over the past few days, killing at least four people.

A decelerating growth rate — the lowest in 16 years — comes amid fears the country is accumulating too much debt at the local level.

Find out everything you need to know to watch the 2016 Perseids Meteor Shower.

Australia announces $154-million upgrade for Sydney Opera House, the largest since its opening in 1973.

Get excited for the 2016 Perseid meteor shower with these epic photos sky watchers have been sharing on Instagram.

Republican nominee Donald Trump suggested Wednesday that United States President Barack Obama created the Islamic State group, but there's no proof to back that claim up.

The man known as Haji Hamid was reportedly killed Wednesday in a counter-terrorism operation.

A new study, based on the analysis of ancient plant and animal DNA, demolishes a long-held theory of how the first settlers came to America.

The militants, which are splintered in many groups, say they want a greater share of Nigeria's oil wealth.

Researchers working with the MoEDAL experiment at the Large Hadron Collider have begun looking for the elementary particle of magnetism.