
Our Solar System has a wall. And NASA is about to reveal its true shape
NASA’s newly launched IMAP mission is set to tell us more about the boundary between our Solar System and interstellar space than ever before

A cow has been filmed using tools for the first time ever, stunning scientists
Veronika, a cow from Austria, taught herself to use a broom – and we have the footage to prove it

We're finally learning the true side-effects of weight-loss drugs
Millions of people are now using weight-loss drugs, but it seems there are drawbacks that come with the slimmer waistlines

Here's what school examiners do that AI never could
AI is increasingly creeping its way into the classroom, helping teachers to plan lessons, creating resources, mark work and handle administrative tasks. Is the human touch still important?

Seed oils vs butter: Here's what’s actually healthier, according to doctors
With droves of wellness warriors choosing butter over seed oils, scientists weigh in on their favourite fats

New issue: Don't count the calories
January’s long nights, howling winds and unending drizzle that constitute a British winter all seem to scream: stay indoors, get under a blanket and stay very still. But every year, I reach January and the same conclusion as millions of others: it’s time for change. Christmas is what does it. There’s only so much indulgence the body can take. It starts on the 24th when, if you’re lucky, work’s finished and the fridge is full. Over the next seven days, I’ll feast like a Tudor monarch, picking at carcasses, stabbing at cheese and washing it all down with a bit of port (well, someone’s got to finish it). But by New Year’s Day I’ve had enough. Meaningful, lasting change isn’t easy. The science says so. Sure, a fitness influencer will scream at you until they’re Christmas-ham-pink in the face that losing weight is JUST SIMPLE MATHS: burn more calories than you consume, and you’ll lose weight. But your genes, biology and chemistry don’t work like a calculator. There’s more to it. So we’re here to help you construct bite-sized changes that will add up to significant improvements in your health and wellbeing this year.

We finally know what foods actually raise your cholesterol – and which ones lower it
What really causes your blood fats to skyrocket? Groundbreaking discoveries have delivered surprising new answers

The world's biggest 'doomsday vault' has now been opened. Here's what's inside
Scientists are racing to protect the world’s seeds from natural disasters and war. But what happens when those disasters come early?

The 'mutant' humans immune to every known virus
Researchers are edging closer to a universal antiviral drug, a single medicine that could treat every virus known to man

The subtle signs you're a chronic people pleaser (and how to take back control)
Are you a doormat, or just a nice person, if you constantly make sacrifices for other people?
Top reads

121 random fun facts that will blow your mind
Our collection of the best interesting trivia covers animals, biology, geography, space and much more

Could hidden dehydration be the cause of your daytime fatigue?
Feeling tired? Your afternoon dip could be low-chronic dehydration

How to beat anxiety: 8 simple, concrete strategies to take control of your mind
Whether in the short- or long-term, there are lots of different techniques that can help you deal with anxiety.
Science news

75 per cent of US adults could be obese under new definition
The new guidelines highlight people who could be at risk from complications further down the road

The ancient baths of Pompeii were outrageously filthy, study finds
The pre-Roman baths of Pompeii would have been seriously grotty, according to an analysis of mineral deposits

Mosquitoes are becoming thirstier for human blood, study suggests
Habitat loss may be pushing mosquitoes towards human hosts with deadly consequences

Listening to this sound could help reverse Alzheimer’s
The research is in its early stages but offers “encouraging” evidence of a potential treatment
Future technology

We might finally know what will burst the AI bubble
Many experts and analysts are warning that the AI industry is overvalued and heading for a crash. But why?

Why the Moon's far side is now the prize every country wants
There’s only one place to go if we want to catch sight of the cosmic dawn

How whales, vodka and volcanic ice blocks could soon solve the carbon crisis
From living paint to injecting rocks, scientists have bizarre carbon capture ideas that could help us tackle the climate crisis

1,000 AIs were left to build their own village, and the weirdest civilisation emerged
Inside the strange experiment that turned AI agents into workers, leaders and believers
Instant Genius Podcast
From the creators of BBC Science Focus, Instant Genius is a bite-sized masterclass in podcast form. With each episode, a different world-leading expert will help you understand the latest ideas and research in the world of science and tech. We want to make you an expert in everything.
Instant Genius Podcast | Do you have synaesthesia? Why some of us can taste words
Do you experience sounds or music visually as certain shapes? Or 'hear' colours?
Instant Genius Podcast | Why you’re not actually addicted to your phone
Not all social media is unhealthy – here's how to rethink your relationship to it.
Instant Genius Podcast | How personalised medicine is about to change healthcare forever
The new power of precision treatments, explained.
Your questions answered
Our team of scientists, doctors and experts answer your burning questions - send yours to questions@sciencefocus.com

Can what happens at an ultrasound really influence how parents bond with their baby?
A study has suggested that the language used to describe a foetus during an ultrasound may affect parents' perceptions of their baby... even after birth

How does being born by C-section affect a child's long-term health?
When babies are born vaginally, they pick up helpful bacteria from their mum as they pass through the birth canal

Should I ditch the HIIT?
HIIT exercise isn't for everyone and there's some evidence that you can overdo it. Here's what the experts recommend

Can animals be left- or right-pawed?
Does your pet favour one paw in particular? Surprisingly there is an easy way to find out and it applies to most animals.

Why is Mars red?
For centuries – maybe millennia – humans have wondered why Mars has a reddish hue

What do my farts say about my health?
Plus, what you can do if you're suffering discomfort
Science photo galleries

The 10 best optical illusions that will blow your mind
Optical illusions are fun and intriguing, and we don't always know why they happen. Here are some of our favourites.

The top 22 most ugly animals in the world
Not all creatures can be beautiful, but they all have interesting stories to tell

30 astonishing close-up images that make the smallest things look epic
Life in stunning detail

10 of the world's worst-ever inventions
From the electric tricycle to parachute coat, these are some of the most poorly received devices developed around the globe.

Nature like you've never seen it: 18 jaw-dropping aerial photos
Our planet, like you've never seen it before

This year’s most powerful scientific experiments, in 14 images
The annual Wellcome Trust image award shortlist showcases the most powerful images of global health challenges