DUNCAN DAVIDSON, VIA EMAIL - WHAT IS THE SUPINE POSITION?

The supine position is simpler than it may sound. It describes the position of the body when lying flat on the back, with the face and torso facing up. In this position, the limbs are generally straight, with the palms facing upward.

ELIZABETH HUMPHREY, BATH - WHAT CAUSES PREGNANCY CRAVINGS?

Cravings are something many mamas-to-be are familiar with. Whether it's ice cream, chocolate, pickles, or something obscure, the body knows what it wants during pregnancy and makes sure we know about it.

KENDRA PARK, VIA EMAIL: WHY DOES MY SKIN FEEL MORE SENSITIVE TO TOUCH WHEN I HAVE A COLD?

If you've noticed that your skin feels extra sensitive when you're ill, you're not alone - and there are several reasons why this might happen.

LARA EATON, MANCHESTER: HOW IS HAIL MADE?

Many of us have experienced those hot summer days which start off with sunshine, before towering cumulonimbus clouds bubble up through the day, eventually bringing thunder, lightning and torrential downpours.

NATURE'S WEIRDEST... SHAMPOO GINGER LILY

Tired of taking two bottles into the shower? Simply snip off the club-shaped flower head of the shampoo ginger lily plant - you can't miss it; it's the one that looks like an embarrassed pinecone - and squeeze the spongy structure onto your scalp.

WHAT IS THE POWER POSE? AND WILL IT REALLY BOOST MY CONFIDENCE BEFORE A JOB INTERVIEW?

A power pose is essentially any kind of body position that involves taking up more space. Imagine standing with your legs astride and your hands on your hips, or - as used in the seminal research on power poses from 2010 - leaning back in your chair with your legs up and your hands behind your head.

THE MYSTERIES OF EARTH'S CORE

Take even a quick peak beneath Earth's surface and you soon discover just how much we don't know about what's happening right under out feet

MAKING WAVES

How do you study a gigantic mammal that migrates over thousands of miles and spends most of its time underwater? Here's how the latest tech is shaping the future of whale conservation

Matter made magic

WELCOME TO THE WONDERFUL WORLD OF PROGRAMMABLE MATERIALS. FROM SELF-ASSEMBLING STRUCTURES TO FUTURISTIC FABRICS, TAKE A PEEK AT THE SHAPE OF THINGS TO COME...

Five of the best video doorbells

These devices promise to revolutionise the way you collect packages, keep your home safe and even how you interact with your postie and friends. The BBC Science Focus team picks their faves

AI art is everywhere but it can never compete with human creativity

Alex Hughes speaks to Prof Ahmed Elgammal, an expert in artificial intelligence to learn more about the rise of art made by AI

ONE MEAL A DAY: COULD IT WORK FOR WEIGHT LOSS?

Is eating just once a day the secret to staying trim or is it just restrictive eating?

SPACEFLIGHT:SHOULD THE FIRST CREW TO TRAVEL TO MARS BE ALL-FEMALE?

A new study carried out by the European Space Agency suggests that women may be better suited to space travel

COMPUTER PASSWORDS: IS THERE A BETTER WAY TO SECURE YOUR DEVICES?

Google's new passkey software offers a biometric replacement for old-fashioned passwords. So can we finally forget about having to remember all those sequences of numbers, letters and symbols?

THE IDEA THAT WE ONLY USE 10 PER CENT OF OUR BRAINS IS A MYTH THAT NEEDS TO DIE

The myth has been around for over a century and as well as being utter nonsense, it's also potentially dangerous

COULD DELAYING YOUR MENOPAUSE BE BETTER FOR YOUR HEALTH?

The 'change' is a turning point in women's lives that we still don't fully understand

WHY SCHRÖDINGER'S CAT IS STILL THE MOST CONTROVERSIAL THOUGHT EXPERIMENT IN SCIENCE

Nearly a century after its formulation, the paradox remains hotly debated among researchers

HEALTH: SEE INSIDE THE MOSQUITO ARENA BUILT TO TEST HOW THE MALARIA-SPREADING BUGS HUNT HUMANS

Welcome to what could be the worst campsite ever where mozzies are guaranteed

PRIMER: THE RISE OF E-FUELS

Synthetic fuels could make transport more sustainable.... but at a price

ALIEN LIFE: ALIENS COULD SOON DETECT LIFE ON EARTH, ALL THANKS TO OUR MOBILE PHONE MASTS

Only aliens with more advanced technology than us would be able to 'eavesdrop' on the signals transmitted on Earth. But apparently that's more likely than you might think

NEUROSCIENCE: THIS MACHINE CAN READ YOUR MIND AND TRANSLATE HOW YOU SEE THE WORLD

Neurotechnologists have developed a decoder that can reconstruct what you're seeing, thinking and imagining... and put it into words

DARK EARTH: SCIENTISTS UNVEIL A NEW 'SECRET WEAPON' TO COMBAT DEFORESTATION

Ancient soil from the heart of the Amazon could help restore the planet's depleted rainforests

YOUR DNA IS TURNING UP IN PLACES YOU LEAST EXPECT IT

A new study reveals human DNA can be retrieved from almost anywhere and be used to identify you

BREAKTHROUGH STUDY REVEALS HOW SUPER-MASSIVE DINOSAURS GOT SO BIG

The sauropods were the largest animals to ever walk on Earth. A new study explains how they got that way

A GENE NAMED AFTER SONIC THE HEDGEHOG IS ALL THAT SEPARATES SCALES FROM FEATHERS

A recent discovery shows that changes in an unusually named gene can turn a scaly animal into a feathered one

3 rules behind every diet that works

We're fed up with navigating all the tips and advice online telling us how to lose weight, so we asked an obesity expert to reveal whether anything actually works for weight loss

DREAMS ARE BIZARRE, SO WHY DO THEY SEEM NORMAL WHEN WE'RE ASLEEP?

Our sleeping brains weave a patchwork out of our memories in complex, baffling ways

GETTING A GOOD NIGHT'S SLEEP IMPROVES IMMUNE RESPONSE TO VACCINATIONS

People who sleep for less than six hours a night produce significantly fewer antibodies after getting their jabs

COMPOUNDS ESSENTIAL FOR LIFE FOUND IN SAMPLES COLLECTED FROM A NEAR-EARTH ASTEROID

Samples collected during Hayabusa2's trip to the asteroid Ryugu contain uracil, a substance present in RNA

Can we feel others' emotions?

Mantis, from Guardians Of The Galaxy, is an empath. Do we feel the same way, too?