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John Stewart: Developments in evolutionary theory suggest we have a central role to play in the future of the universe

Oxygen levels on Earth reached a critical threshold to enable the evolution of complex life earlier than previously thought, say scientists.

Almost as many Americans have been killed in three months by Covid-19 than in 44 years of wars.

The US secretary of state says the territory no longer merits special treatment under US laws.

The president claims Twitter is "stifling free speech", after it added fact-check links to his posts.

Bush is gambling that victory over Saddam will lift the US economy out of double-dip recession - but he risks sparking another oil crisis.

A look at key indicators over decade which followed the US-led invasion of Afghanistan in October 2001.

Fresh details, including reports on Osama Bin Laden, emerge from US military records sent to Wikileaks, as the Pentagon tries to find the culprit.

President Barack Obama says publishing photos of the dead Osama Bin Laden would pose a national security risk to the US.

They have named the wreck after the fisherman who first spotted it off the coast of Quintana Roo.

The financial toll of America's wars in Afghanistan and Iraq was laid bare yesterday when a congressional committee estimated the cost of both conflicts at $1.6 trillion (£771bn) and rising - $20,000 for every family of four in the US

Scientists have tracked a cuckoo's migratory flight from Africa to its breeding ground in Mongolia.

As a new exhibition looks at the concept of the loop, Joobin Bekhrad discovers how one symbol had different meanings in ancient Egypt, Hindu mythology and Renaissance alchemy.

The 23-year-olds were winched from a clearing after a helicopter spotted smoke from their fire.

Whistle-blowing website Wikileaks publishes a CIA memo examining the implications of the US being perceived as an "exporter of terrorism".

When Sweden implored its citizens to socially distance themselves, one couple answered that call to duty in an unconventional way.