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What is sucralose, and is it safe for you?

Well it's very sweet, and as far as we can tell, yes.

Latin American's science contribution against COVID-19

Research against Covid-19 in Latin America brings hope in the middle of the crisis.

How many people live in Antarctica -- and other things you wish you knew about the frozen continent

Antarctica's a weird place. It has a Burger King, a few coffee shops, but no real inhabitants.

This minimalistic chart shows how hot 2020 and the past few years have really been

It’s easy to forget, in the current situation, that the world is still heating up severely. If the COVID-19 pandemic is a wave sweeping through the world, then climate change is a tsunami looming darkly on the horizon and already starting to strike. Yes, climate change is hitting us already, probably in more ways than […]

How soon and how long after the vaccine are you immune?

You don't get a vaccine and become immune the next second. It usually takes a while -- and we're not sure how long it lasts.

Can you spread COVID-19 after getting vaccinated?

Vaccination probably doesn't work the way you imagine it does.

How many have been vaccinated in the US

How's the richest country in the world doing?

How does an air conditioner work?

Simple questions often lead to very rich topics.

Why Jeff Bezos' retirement from Amazon means big things for space

The Amazon founder has huge plans for space exploration. Now he actually has the time and money to make them happen.

How long it takes to break a habit, according to science

Did you honestly expect a straightforward answer?

Pandemic skirmishes: the US is lacking decisive action on viral transmission, physicist warns

A five-week lockdown could squash viral transmission, one researcher argues.

Why is the ocean blue?

It's all due to the physics of the scattering of light.

What function does the appendix serve?

Far from useless, the appendix is important for maintaining gut flora and supporting the immune system.

What's the cheapest COVID-19 vaccine ?

Several vaccines have laid claim to the 'cheapest' title. Things aren't entirely clear, but some vaccines are definitely cheaper than others.

A thorough comparison of the Pfizer and Moderna COVID-19 vaccines

Both are mRNA vaccines -- the first of this type -- and are similar in many ways, but there are also some key differences.

16 Dog facts we've only learned in the past few years

Man's best friend has been with us for millennia, but we're still learning new things.

14 Mars facts we've only learned in recent years

There's more to the Red Planet than you think.

What the Roman Empire looked like at its peak in one glorious map

The scale of the Roman Empire during its heyday was unprecedented in the Ancient World.

What is a stroke?

Know the signs and act FAST.

What are Cistercian numbers -- the forgotten ciphers of Medieval monks

A system of numerals that is written down like tic-tac-toe.

Could lab-grown meat prevent the next pandemic?

Many fear that COVID-19 is just a dress rehearsal for what lurks around the corner. Could lab-grown meat be an ally?

The largest planetary ring system we've found would dominate the sky -- if it was in our solar system

When talking about planetary ring systems, Saturn and Jupiter likely spring to mind — they are our closest ringed neighbors, after all. But although impressive, their rings aren’t that large, in the grand scheme of things. Jupiter’s aren’t that large even when judging only by our Solar System. Neptune and Uranus also have rings, but […]

How we got a safe, effective vaccine in under one year -- without cutting corners

It's an unprecedented achievement owed to intense scientific efforts and massive funding.

What made the development of the COVID-19 vaccine unique in history

It’s the fastest-developed vaccine ever -- here’s how we pulled it off.

Frequently asked questions about the coronavirus vaccine

Everything you wanted to know about the new coronavirus vaccines.

Is the COVID-19 vaccine safe for pregnant women?

There's no data because clinical trials did not include pregnant or breastfeeding women. But here's what we know so far.

What's exactly inside the COVID-19 vaccines?

Sorry but there’s no microchips or luciferase, just safe and effective ingridients.

How long does COVID-19 vaccine immunity last?

Scientists don't know for sure at this stage of the pandemic, but there is evidence suggesting that current vaccines could offer ample protection.

What are the side effects of the vaccine for COVID-19?

All medication has side effects, and coronavirus vaccines are no exception. Severe reactions are very rare though!

Do I still need a vaccine even if I had COVID-19?

The upside of being sick with COVID-19 is that you're likely naturally immune now, but no one knows for sure how long this immunity lasts.

Why you still need to wear a mask after getting a COVID-19 vaccine

Vaccines are here, but dangers still lurk.

Inside the quietest room in the world where you can hear your heartbeat and blood flow

It's a surreal experience but few can bear it for more than a few minutes.

7 brainy reasons why crows and ravens are the smartest birds in the world

Who you calling bird brain?

The Hidden World of Mathematics in The Simpsons

From pi to Mersenne primes, from Euler's equation to the unsolved riddle of P vs NP, The Simpsons is filled with hidden math gags.

In Poznan, Poland, eight clams get to decide if people in the city get water or not

They might be small, but these mussels shoulder tremendous responsibility.

Why Roman concrete is stronger than it ever was, while modern concrete decays

Concrete in some Roman piers is not only still viable today but stronger than it ever was. Its secret sauce? Seawater.

The Secret Science of Santa

ZME Science delves into a timely Yuletide investigation of the science that enables Santa to deliver Christmas to millions of children across the globe. If you thought it was magic, think again.

2020: A Year in Space

Despite the global pandemic that has brought much of the world to a grinding halt, space scientists have continued to push the boundaries of our knowledge throughout 2020.

The best gadgets and robots of 2020

This has been one heck of a year, that's for sure. Just look at this robot dog.

The most important news on the environment, climate and energy of 2020

It's been quite the year.

The Swedish model: a year on, the unique pandemic approach still isn't paying off

As its hospitals fill up to capacity and intensive care beds are running out, Sweden is starting to sidetrack from its initial approach.

Breathtaking underwater photographs document the hidden lives of humpback whales

An Australian artist has captured graceful photos of humpbacks and compiled them to in a enchanting book.

The real color of the moon -- and why it's probably not what you think

It's part boring, part interesting, and mostly geology.

What are sensors, how they work, and why they're everywhere

They tell us what's going on in nature, in a way that's easy to read and understand.

The Paris Agreement, five years on. Can we still avoid a climate crisis?

It was supposed to be a pivotal moment to fight climate change. Things are not so clear.

Researchers are now studying earthquakes and geology with unused optic fiber cables

So-called 'dark fiber' could help seismologists map the underground and measure our planet's rumbles.

Examples of electricity in nature

Electricity is quite busy in the natural world.

Why is gold considered valuable, even today?

Gold -- who doesn't want some?

Can you die from lack of sleep?

In December 1963, two boys thought of a bright idea for a school science project– they would stay awake for as long as possible and report back on what happens inside their sleep-deprived brains. The project ended on 8 January 1964, when 17-year-old Randy Gardner had managed to stay awake for 11 days and 25 […]

Coronavirus myths: What we know isn't true of the pandemic

A year into the pandemic, we're still battling coronavirus myths.

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