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02/09/2014
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28/08/2014
If you have the Facebook app installed on your smartphone then you might have noticed the social network is insisting that you download its dedicated messaging app. Add your vote to our poll to let us know what you think of the...
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26/08/2014
21/08/2014
21/08/2014
In this month’s Focus: the coming age of teleportation, Formula E gets ready to go, the war on smog, and how to swat a fly
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21/08/2014
Gallery
Apollo 11 in pictures
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If you have the Facebook app installed on your smartphone then you might have noticed the social network is insisting that you download its dedicated messaging app. Add your vote to our poll to let us know what you think of the new app...

Have you installed Facebook Messenger on your smartphone? Have you installed Facebook Messenger on your smartphone?

If you have the Facebook app installed on your smartphone then you might have noticed the social network is insisting that you download its dedicated messaging app. Add your vote to our poll to let us know what you think of the new app...

Q&A

When you’re truly shocked, you don’t cover your mouth; you just scream. Covering your mouth seems to be a secondary reaction, when you’re trying to moderate your initial response...

Ice ages are controlled by cyclic changes in the Earth's orbit and orientation, and calculations suggest another one should have begun several thousand years ago. In 2005, a team led by Professor...

In a word, radioactivity. We’re all living on top of a vast natural nuclear reactor, packed with uranium, thorium and potassium that ended up trapped inside the Earth during its formation...

Because we didn’t evolve in a world full of sugar. For our ancestors in Africa, sugar from ripe fruit or a precious bee hive would have been a rare treat, and well worth prizing for its...

Yes. The blunt end of an egg has an air pocket between the inner and outer shell membranes. This gradually enlarges as the egg loses moisture during storage. Keeping the air pocket at the top...

Sweat doesn’t sit in a separate reservoir or fuel tank that can be temporarily drained dry. The eccrine glands in your skin take fluid directly from the plasma in your blood; in effect sweat...

Diagrams of the Solar System give the impression that the orbits of Neptune and Pluto cut right across each other, and textbooks even state that Pluto crossed the orbit of Neptune in February 1999...

Supermassive black holes reside deep in the cores of galaxies and create huge amounts of X-ray emissions as they continually devour material. Such objects are thought to hide in the heart of all...