BBC

Laser labs that detect ripples in space-time may have witnessed a new class of cosmic object.

We answer some common questions about the America's Perseverance rover mission to Mars.

The completion of the BeiDou-3 navigation system comes as tensions rise between Beijing and Washington.

Why have hundreds of workers tested positive for coronavirus at abattoirs and meat processing plants?

Tracking wildlife before, during and after lockdown will aim to analyse the slowdown in human activity.

The NHS is calling for men who have been ill with the virus to donate blood for treatment trials.

Professor Peter Piot, one of the world’s top infectious disease experts, was hit by Covid-19.

Temperatures are believed to have hit 38C (100F) in one Siberian town after a persistent heatwave.

Large-scale tree planting to fight climate change may backfire, two new studies have found.

Highland councillors will vote on Friday on the Space Hub proposals, after receiving 457 objections.

Experts believe the find is more than 4,500 years old and marked a boundary near to the sacred site.

More than 14,000 key workers in the UK will try out the 'no swab' test that can spot new infections.

Skywatchers photographed the "ring of fire", where the moon passes between the Earth and the Sun.

What are second waves and how big a problem are they?

This leaves four-fifths - twice the area of Mars - still to be surveyed to a modern standard.

Sixty years after his father did it first, Kelly Walsh dives to the deepest point in Earth's oceans.

Greta Thunberg says the world needs to treat climate change with similar urgency to Covid-19.

A new analysis says global sport faces major disruption from climate change in coming decades.

Scientists estimate "lost allotments" in the UK could have provided 6% of the population with their "five-a-day" diet.

A new Russian-German space observatory produces the most detailed ever all-sky image seen in X-rays.