BBC News - Science & Environment
What chance has Nasa of finding life on Mars?
When the US space agency's next rover gets to Mars in 2021, it will seek evidence of ancient life.
Hope for 'decent' climate talks outcome
The likelihood of a deal at global climate talks in Poland has increased after a new draft text was released.
Plan for food waste to be separated
Councils will have to offer separate food caddies in a bid to combat methane emissions.
Nasa's Jupiter mission Juno reveals giant polar storms
Stunning images from Nasa's Jupiter "JunoCam" show huge, "endless storms" at the planet's poles.
Branson's Virgin Galactic reaches edge of space
The latest test flight by Sir Richard Branson's Virgin Galactic makes it to the edge of space and back.
Parker Solar Probe: Sun-skimming mission starts calling home
Having become the closest-ever human-made object to our star, the Parker spacecraft returns its first data
Climate change: Failure to tackle warming 'suicidal'
UN secretary general tells climate negotiators in Poland that failure to make progress would be a desperate blow for the planet.
Climate change is 'shrinking winter'
Snowy mountain winters are being squeezed into shorter periods, threatening water supplies and increasing wildfire risk.
'Planet of the chickens': How the bird took over the world
With around 23 billion chickens on the planet at any one time, the bird is a symbol of our times, say scientists.
Nasa's IceSat space laser makes height maps of Earth
One of the most powerful Earth observation tools ever put in orbit is now gathering data about the planet.
Climate change: Arctic reindeer numbers crash by half
Climate change in the Arctic has caused the wild reindeer population to crash by 56%, a report says.
Gene study unravels redheads mystery
Researchers at Edinburgh University carry out out the largest genetic study of hair colour to date.
'Surprise' Palu tsunami clue found on seafloor
Scientists are getting closer to understanding the damaging tsunami that struck Sulawesi in September.
ISS: Spacewalk cosmonauts investigate mystery hole
The mystery hole in a Soyuz capsule docked to the International Space Station caused a pressure leak.
East Antarctica's glaciers are stirring
Nasa detects the first signs of significant melting in a swathe of previously quiet ice streams.
Climate change: Protecting the poor from green taxes
Has President Macron's controversial fuel tax set back carbon taxes globally?
Amount of deep life on Earth quantified
Having dug and drilled into the Earth, scientists can now estimate how much life exists at depth.
Nasa's Voyager 2 probe 'leaves the Solar System'
Voyager 2, a space probe launched in 1977, becomes only the second human-made object to enter the space between the stars.
Himalayan and other Asian glaciers put the brakes on
The ice streams that flow down the flanks of Asia's high mountains are moving slower as they thin.
Climate change: Trump coal event overshadowed at COP24
White House efforts to promote fossil fuels are set to be upstaged by investors moving away from coal.
'Digital museum' brings millions of fossils out of the dark
A global effort to digitally record millions of fossils is set to transform the study of evolution.
Nasa's InSight probe listens to Martian winds
Two instruments on the recently landed InSight probe capture the noise made by the planet's wind.
Climate change: COP24 fails to adopt key scientific report
A major climate conference in Poland has failed to adopt a key report after a dispute over a form of words.
Bloodhound supersonic car project axed
The driver of the 1,000mph supersonic vehicle says the car is available for the cost of a Ferrari.
Chang'e-4: China mission launches to far side of Moon
It is the first attempt to land robotic craft on the side of the Moon which never faces Earth.
Trump's environmental rollback rolls on
The administration plans to open protected lands for drilling and lift curbs on carbon emissions.
Climate change: Warming made UK heatwave 30 times more likely
Rising global temperatures have massively boosted the chances of summer heatwaves in the UK, says a study.
Cars and coal help drive 'strong' CO2 rise in 2018
CO2 emissions hit an all time high, rising nearly 3% in 2018 thanks to coal and a booming global market for cars.
Game-on for UK's Team Tao in ocean XPRIZE final
A UK-based team arrives in Greece for the grand final of a contest to find innovative solutions for seafloor mapping.
Ash dieback: Ash woodlands 'may flourish once again'
Scientists say there is hope that some ash trees can survive in the future, despite ash dieback.
Saving the last West African giraffes in Niger
The highly threatened subspecies has been brought back to a reserve in Niger after a 50-year absence.
World's strangest sharks and rays 'on brink of extinction'
A shark that uses its tail to stun prey and a ray half the length of a bus are on the list of 50 species.
Osiris-Rex: Nasa probe arrives at Asteroid Bennu
Nasa's Osiris-Rex spacecraft moves alongside the 500m-wide rock from which it hopes to grab a sample.
Research worms 'too old' to go to space station
A launch is delayed due to mouldy food bars, meaning the worms could be a day too old for research.
What is that bright object next to the moon?
A spectacular sight lights up the sky as Venus and the moon rise together
Albert Einstein's 'God letter' sells for $2.9m
The 1954 letter about religion smashed its predicted price at an auction in New York.
Bacton Gas Terminal to be protected by sandscaping plan
A nationally important terminal on the Norfolk coast is to be protected by a new "sandscape".
West Mersea mammoth tusk 'dates back 12,000 years'
It was discovered off the Essex coast after an unusually low tide exposed it for about half an hour.
Gravitational waves: Monster black hole merger detected
Laser labs sense gravitational waves from a black hole collision at least five billion light-years away.
Soyuz rocket: First crewed launch since failure docks at ISS
Russia's space agency confirmed the docking - the first crewed launch since October's failure.
Climate change: 'Trump effect' threatens Paris pact
President Trump's actions are restricting global efforts to cut carbon, a study suggests.
Nation's botanical treasure troves 'under huge threat'
The UK's herbaria are great scientific collections that must be safeguarded for the future, say scientists.
TEDWomen: Vibrations offer new way to track elephants
A technique used to study earthquakes have been adapted to track elephants in the wild.
Brexit: Sam Gyimah resigns over Theresa May's 'naive' deal
Sam Gyimah says the row over the EU's Galileo system shows how the UK will be "hammered" in any deal.
Climate change: How slag can remove CO2 from the air
Scientists in Wales are looking at how slag heaps can be used to remove CO2 from the air in the fight against climate change.
Satellites warn African farmers of pest infestations
UK researchers develop an early warning system to prevent crops in Africa being devastated.
Australian students in mass climate protest
Thousands skip school to urge action on climate change, despite criticism from PM Scott Morrison.
Extinction crisis: Five things you should know
The United Nations biodiversity chief on why extinction is a "silent killer" and deserves more attention.
Carmichael project: Visiting Australia's controversial Adani mine
The BBC's Vineet Khare visited the controversial Carmichael project by Indian energy giant Adani.
Berta Cáceres: Seven convicted of murdering anti-dam activist
A Honduran court finds seven men guilty of killing renowned environmental campaigner Berta Cáceres.
Climate change: Can 12 billion tonnes of carbon be sucked from the air?
Is it remotely feasible to remove 12 billion tonnes of carbon dioxide from the air?
Climate change: Last four years are 'world's hottest'
Twenty of the warmest years on record have been in the past 22 years, say the World Meteorological Organization.
Climate change: CO2 emissions rising for first time in four years
Global efforts to tackle climate are off track says the UN, as it sees a rise in CO2 after years of decline.
Climate change: EU aims to be 'climate neutral' by 2050
The European Union says it wants to become the first major economy to achieve net zero emissions by 2050.
UK's first carbon capture and storage project 'operational by mid 2020s'
Ministers give a timeline for the UK's first carbon capture and storage project, as research funding is announced.
Virgin Galactic's SpaceShipTwo: The view from the edge of space
Virgin Galactic's SpaceShipTwo rocket ship has made a successful test flight, 82.7km above the Earth's surface.
Dive over Jupiter's cloud-tops with Nasa's Juno craft
Nasa's Juno mission to Jupiter has reached its halfway mark and revealed spectacular views of the planet's polar storms.
Astronaut Nick Hague ready for second space flight attempt
Astronaut Nick Hague is ready for his next space flight attempt, after the first mission was aborted.
Samples cut around Soyuz hole in spacewalk
Cosmonauts have cut samples from around a hole, which Moscow says may have been caused by a drill.
Poland climate summit protest limits anger young activists
Protesters are frustrated by strict controls on protests at the UN climate summit in Poland.
How Apollo 8 Astronauts took the famous 'Earthrise' photograph
Frank Borman was the Commander of the Apollo 8 mission to the Moon. The astronauts took an iconic photo of the Earth rising above the lunar surface.
Fossil preserves 'sea monster' blubber and skin
Scientists identify fossilised blubber from an ancient marine reptile that lived 180 million years ago.
Rats and pigeons 'replace iconic species'
"Iconic" animals such as tigers are being replaced by "cosmopolitan" species found everywhere - researchers.
New Zealand whales: Why are so many getting stranded?
Illness, warmer waters and the fact that pilot whales travel in sociable groups could all play a role.
The rough with the smooth
The UK claims to be a leader in climate change - but is it?
Climate change
As representatives gather in Poland for talks on climate change, we look at how hot the world has got and what can we can all do to tackle global warming.
House in a lab
Scientists have rebuilt a terraced house inside a laboratory to help make UK homes energy-efficient.
High risk
Our reliance on technology means a violent storm on the Sun could have serious effects.
Edible insects
Sainsbury's is the first UK supermarket to stock edible insects - but just how tasty are they?
Palm oil: One woman's fight to save 'the last place on Earth'
Farwiza Farhan on efforts to protect the forests where orangutan, rhinos, elephants and tigers co-exist.
Out of the shadows
Caroline Herschel discovered eight comets - one was named after her - but her work is less known about than her brother William's.
Colourful dynasty
The endangered African wild dog will enthral TV viewers when it features in David Attenborough's new Dynasties series.
Dr persistence
Sophia Jex-Blake was a pioneer of women's education on her way to be Scotland's first female doctor.
Living laboratories
This living laboratory could hold the key to controlling malaria and other conditions.
Red Planet
Hollywood director Ron Howard talked to the BBC about creating a realistic depiction of the first human colonies on Mars.
Stephen Hawking: A life in pictures
The physicist, who battled motor neurone disease for most of his life, has died at the age of 76.
Stephen Hawking dies: Scientist's most memorable quotes
Remembering some of the key theories and quotes of the world renowned physicist, who has died.