Science

Science

How much does a cloud weigh?

Clouds come in all different shapes, but their weight depends on three factors: size, temperature and density – or, more precisely, the amount of water they contain.

Science

What's on the Voyager Golden Record?

Picture the scene: millions of years in the future, an alien race comes across a peculiar lump of metal floating through the darkest depths of space. Attached to the object is a shiny disc covered in strange markings.

Science

When will the sun die?

A gigantic cloud of gas and dust formed in our galaxy 4.6 billion years ago. Gravitational forces and rising temperatures (10,000,000°C) made the nuclei of hydrogen atoms move so quickly that a nuclear reaction occurred, creating our sun.

Science

Which planet has the longest day?

The idea of a day to night cycle lasting for anything other than 24 hours is strange. However, this is exactly what occurs on other planets in our solar system.

Science

Can you build a house with bacteria?

More than 1.2 trillion bricks are produced worldwide every year, resulting in 800 million tons of CO2 being spewed into the atmosphere. Now a new method aims to make the production of the oldest building material in the world more environmentally friendly.

Science

Who was Mary Anning?

Born in 1799, Mary Anning received a very basic education: she was taught to read and write, but not much else. However, embedded into the cliffs near her home in Lyme Regis were thousands of strange, frozen creatures, which the imaginative locals called “devil's fingers” or “snake stones”.

Science

How do you sleep in zero gravity?

The crew on the International Space Station (ISS) kip in sleeping bags attached to the wall with Velcro or cables. On average, crew members get six hours of sleep a night, but as there is no ‘up’ or ‘down’ in weightless conditions, many suffer from sleep disorders.

Science

How was the moon formed?

  1. Countless planets were formed from gas and dust in our solar system. One of them was the young Earth, but it didn’t orbit the sun on its own. Another celestial body formed on its orbit path – a trojan called Theia. 

Science

Where is the hottest place on the planet?

The Kerman province in central south-eastern Iran is home to the country’s brutally arid Dasht-e Lut desert. Its translated name – ‘Desert of Emptiness’ – is an apt moniker: not a lot lives or grows here thanks to the punishing heat.

Science

Can an artificial hip power a jet plane?

It’s a tantalising thought. The artificial hip that could help us to walk in later life might one day power something a good deal faster than a human being.

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