Category: Tech

Lunar and solar eclipses make animals do strange things

For most animals, the structure of their day – and indeed their year – depends on the light-dark cycle. These regular and rhythmic cycles in the length of days tell animals when they should be foraging, when they should be asleep, when it’s time to migrate and when it’s time to breed. Animals can tell all this from how many hours of daylight they experience, but the moon’s cycles also strongly influence their behaviour.

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Would your mobile phone be powerful enough to get you to the moon?

Many people who are old enough to have experienced the first moon landing will vividly remember what it was like watching Neil Armstrong utter his famous quote: “That’s one small step for a man, one giant leap for mankind.”. Half a century later, the event is still one of the top achievements of humankind. Despite the rapid technological advances since then, astronauts haven’t actually been back to the moon since 1972.

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When tree planting actually damages ecosystems

Tree planting has been widely promoted as a solution to climate change, because plants absorb the climate-warming gases from Earth’s atmosphere as they grow. World leaders have already committed to restoring 350m hectares of forest by 2030 and a recent report suggested that reforesting a billion hectares of land could store a massive 205 gigatonnes of carbon – two thirds of all the carbon released into the atmosphere since the Industrial Revolution.

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Space junk: a recycling station could be cleaning up in Earth orbit by 2050

There are about 22,000 large objects orbiting the Earth, including working and broken satellites and bits of old rocket from past space expeditions. If you include all the equipment dropped by astronauts while floating in space and the debris from colliding satellites down to around 1cm in size, there are about one million bits of space junk in Earth’s orbit.

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