Minuscule silicon wafers propelled by lasers could be used to steer light sails, helping them travel beyond the solar system

Minuscule silicon wafers propelled by lasers could be used to steer light sails, helping them travel beyond the solar system

If a key ocean current collapses it could plunge northern Europe into a big freeze. Now researchers are weighing up a drastic intervention – building a 130-kilometre-wide dam between the US and Russia

If a key ocean current collapses it could plunge northern Europe into a big freeze. Now researchers are weighing up a drastic intervention – building a 130-kilometre-wide dam between the US and Russia

Letter Juggle 2

Take the given words, and by moving a single letter from one word to the other, make a pair of synonyms, or near synonyms. For example, given: Boast - Hip, move the 's' from 'Boast' to 'Hip' creating two synonyms: Boat - Ship.

1. East - Up
2. West - Oak
3. Blog - Ranch
4. Over - Plaint
5. Outage - Ranger


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The US Department of Defense has released hundreds of documents and photographs related to UFOs, some of which have been declassified, in the first of many drops to come

The US Department of Defense has released hundreds of documents and photographs related to UFOs, some of which have been declassified, in the first of many drops to come

Many flowering plants have duplicated genomes, which could have helped them evolve to deal with extreme stress in times of environmental upheaval

Many flowering plants have duplicated genomes, which could have helped them evolve to deal with extreme stress in times of environmental upheaval

A drone has crashed in the Chernobyl exclusion zone, causing a fire that has spread to 12 square kilometres of land. Dry weather, strong winds and the presence of land mines are complicating efforts to bring the blaze under control

A drone has crashed in the Chernobyl exclusion zone, causing a fire that has spread to 12 square kilometres of land. Dry weather, strong winds and the presence of land mines are complicating efforts to bring the blaze under control

Satellite measurements show that in the early 2010s sea level rise suddenly accelerated to a rate of 4.1 millimetres per year, possibly in response to an increase in the rate of global warming

Satellite measurements show that in the early 2010s sea level rise suddenly accelerated to a rate of 4.1 millimetres per year, possibly in response to an increase in the rate of global warming

How important is thinking about your breath for calming yourself down? We now know that slow breathing is effective even without conscious involvement

How important is thinking about your breath for calming yourself down? We now know that slow breathing is effective even without conscious involvement

An impression made in clay around 175,000 years ago could be a kneeprint left by one of the builders of a strange stalagmite circle found deep inside Bruniquel cave in south-west France

An impression made in clay around 175,000 years ago could be a kneeprint left by one of the builders of a strange stalagmite circle found deep inside Bruniquel cave in south-west France

A secret society of French mathematicians has been revolutionising the field of mathematics under a pseudonym for nearly a century. Columnist Jacob Aron finds that this mythic collective provided maths a rigorous and useful foundation, and did some real harm along the way

A secret society of French mathematicians has been revolutionising the field of mathematics under a pseudonym for nearly a century. Columnist Jacob Aron finds that this mythic collective provided maths a rigorous and useful foundation, and did some real harm along the way

I'm So Mixed-up

Mix me up, and I'm fit for delivery
Shuffle me, and we're found in a cookery
Jumble me, and we spin in a nursery
Scrambled, and I might be left on cutlery
I'm hard to do with faulty machinery

What am I?


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