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With a bang and a roar, ejector seats in planes have saved thousands of lives. Paul Marks charts their remarkable development.

BBC News has been given access to ShotSpotter, the controversial US technology company that detects gunshots.

If we ended the use of fossil fuels tomorrow, we would still face huge challenges in stopping climate change – in no small part because of one very common household ingredient.

The hearing in Congress marks the first time top oil executives have answered questions under oath

The social media giant says the new name will better encompass what it does.

The decision is being seen as part of a larger bid to crackdown on vanity projects.

A sample of the Native American leader's hair confirms the identity of his great-grandson.

The story of a controversial physics question on the qualifying exam for the 2014 US Physics Olympiad team. How does a uniform cable beneath a helicopter han...

A new chapter in physics is here, says a team that hunted for a key building block of the Universe.

The world's wealthiest people make a huge contribution to climate change through carbon-hungry activities. How can we reduce emissions from the rich?

Human activity and wildfires have turned highly protected forests into net sources of carbon, a study suggests.

Lawyers for the US say a judge who blocked Julian Assange's extradition was misled by a psychiatrist.

Forty years ago, a photographer spent a week following India's dreaded "bandit king" Malkhan Singh.

A lawyer calls the ruling pioneering as her client could declare herself as a "co-carer".

The legal wrangle has dragged on for seven years, since Russia annexed the peninsula from Ukraine.

As more people try to live environmentally friendly lives, how do we make sex more sustainable?

Small changes to our lifestyles and choices could limit our personal carbon footprint.

"If we don't act now, it'll be too late," warns Sir David Attenborough ahead of the COP26 climate summit.

In many countries, it's common for young children to wear masks against Covid-19 – but do the benefits of protection against the virus pose a risk to their long term development?

"I am not bending to anybody's demands," says the US comic of the transgender backlash he faces.

His space company Blue Origin hopes its venture will replace the International Space Station.

A hub for marine life and sustainable tourism, the Southern Great Barrier Reef is having a moment.

The electric carmaker becomes the fifth such company to reach the milestone after its shares rise 12%.

Astronomers have found hints of what could be the first planet ever to be discovered outside our galaxy.