Immunity is the crucial question and understanding it will tell us how the pandemic will end.

Scientists predict the explosive behaviour of two supermassive black holes almost to the hour.

Ministers are reportedly considering relaxing the two-metre rule for social distancing in workplaces.

Birds, elephants and primates are among those missing guests, zoos around the world say.

The space agency announces the companies that will work on landers to return astronauts to the Moon.

How the outside world can be good for body and mind - with expert tips on making the most of it.

The identity of the "intermediate host" animal that first passed the coronavirus to a human may never be found, say scientists.

New scientific research, from Germany of all places, suggests English footballers are actually good at spot-kicks.

The 5,100 sq km behemoth which broke away from Antarctica in 2017 drops its own large chunk of ice.

Public transport usage won't recover to pre-Covid19 levels once the lockdown ends, a survey suggests.

We look at how hot the world has got and what can we can all do to tackle global warming.

Areas such as India, Australia and Africa are predicted to be among the worst affected.

BBC News looks at what we know and don't know about the Earth's changing climate.

How the global pandemic is limiting carbon emissions and what this will mean for climate change.

US space agency satellites follow the melting trends in Antarctica and Greenland over 16 years.

The Food and Drug Administration authorises emergency use of the experimental anti-viral drug.

Mediterranean sediments are shown to have up to 1.9 million tiny plastic pieces per square metre.

Native woodlands can resist the spread of invasive species if they block light reaching the ground.

Scientists say the microbe - found in the wild near Lake Victoria - has enormous potential.

Mink have caught Covid-19, adding to the list of infected animals, and prompting calls for trade bans.

One of the hardest tasks in Earth observation is tracking tiny changes in the shape of the ground.

Science instruments sense a big dip in seismic noise as the population stays at home.

Prof Neil Ferguson, who advised ministers on coronavirus, says he "made an error of judgement".

A study has identified a mutation that its authors say could make the coronavirus more infectious.

The North Magnetic Pole has been racing across the top of the world, from Canada towards Siberia.

An unseen object is found to be lurking in a double-star system a mere 1,000 light-years from Earth.

Bicycle shops across the UK say demand for new bikes, and repairs for old ones, has risen sharply.

The former Bank of England governor says countries should invest in a cleaner economic recovery.

Certain habitats can help dampen the spread of ash dieback, which threatens ash trees.

The Hawaii-based Gemini telescope produces a super-sharp picture of the gas giant in the infrared.

Facts, figures and dates on the organisation committed to representing the political, economic and cultural interests of the developing world.

Key facts, figures and dates about West Africa's peacekeeping mission

Key facts about the pan-African organisation

A chronology of key events

A chronology of key events

A chronology of key events

A chronology of key events

A chronology of key events

A chronology of key events

A chronology of key events

A chronology of key events

A chronology of key events

A chronology of key events

A chronology of key events

A chronology of key events

A chronology of key events

A chronology of key events

A chronology of key events

A chronology of key events

A chronology of key events