In search of the riders of icebergs

International Polar Bear Day, set up by Polar Bears International, a non-profit organisation, was held on 27 February. The aim of day is to increase awareness in all of us of the challenges that polar bears must face daily due…


Urban aliens

When you take your dog out for a walk in the public gardens near your home or during a stroll through a park in your city, have you ever asked yourself which species the trees that surround you belong to?…


Dwarfs and giants of the islands

Elephants have eyes that are small in proportion to the size of their heads: it is quite hard to locate their eye sockets at the sides of their skulls. On the contrary, their large nasal cavity right in centre of…


What Are Solar Cells? Everything You Wanted To Know

When you think of renewable energy, what comes to mind? Water? Wind? Indeed, these two examples have proven the most popular in recent years. In fact, as it stands now, hydropower is the cheapest renewable energy in use today. Wind…


St. Lucy’s night: a night of shooting stars

In Italy, St. Lucy’s night  is known traditionally as “the shortest night of the year”, but due to the passage of the Geminid meteor shower, it will also become the “brightest night of the year”. In fact, the night between…


Twinkle twinkle little star

The Christmas comet 46P/Wirtanen is crossing the sky. 46P is one of the large family of young comets: these are short-period celestial bodies affected by Jupiter’s gravitational force and for this reason their orbit passes by us frequently. 46P appears…


Under the sign of the Bear

Thirty thousand years ago, on the walls of the Chauvet-Pont d'Arc cave in Southern France, primitive artists painted woolly mammoths, rhinoceroses, lions, horses and bears. Extinct animals that still “live” on the rock and amaze us with the modern style…


Lucy in the sky with diamonds and butterflies

A butterfly flapping its wings in Brazil can produce a tornado in Texas. The author of this poetic image was Edward Lorenz, a meteorologist who in 1972 explained how small changes in a system as complex as the atmosphere can…


Crispr-Cas9, the gene factory

DNA is like an alphabet with only four letters (G, T, A, C) written one after another. A, C, G, T are the initials of the four molecules that encode life: adenine, cytosine, guanine and thymine. Four letters that, combined…

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