Archaeologist Sergio Gomez found the liquid mercury in a deep tunnel of Teotihuacan, an ancient Mexican city that was once the largest in the Americas. He thinks it will lead him to the king's tomb. The chamber in which the mercury was found had been sealed for nearly 1,800 years.
Scientist wants to build satellites which harvest sunlight - then shoot beams of energy down to earth
The main image shows receptor cells on a taste bud (green), blood cells (red) and collagen (blue). The inset image shows taste buds on the tongue in blue.
For sale, the 'world's largest dinosaur skull': 9ft-long intact Triceratops fossil is set to reach $1.8 million at auction
The Dragon King dinosaur skull (shown left and bottom right) is up for sale in Hong Kong. At 9.2ft (2.8 metres) long it is said to be the world's largest intact dinosaur skull. It belonged to a male Triceratops (model shown top right) that lived 66 million years ago. The fossil - first found in Montana in 1992 - is expected to fetch $1.8 million (£1.2 million). The largest previously recorded Triceratops skull measured 8.2ft (2.5 metres) long, but the creatures' skulls were said to average at around 7ft (2 metres).
'Crab' micro-car drives sideways, turns on the spot and can SHRINK to make parking in tight spaces easier
Engineers in Germany describe the EOssc2 (pictured) as an 'ultra flexible micro-car for mega cities' and plan on enabling it to drive itself. The concept car can turn on the spot, shrink in size and even move sideways, like a crab, so it can park itself. It does this because its wheels are individually powered by separate motors so they can turn in different directions.The EOssc2 is currently being tested in the cities of Bremen and Dalian, China.
The belly of the Yellowstone beast: Scientists find huge reservoir of hot magma under the surface that could fill the Grand Canyon ELEVEN TIMES
Researchers from the University of Utah tracked seismic waves from around 5,000 earthquakes to create a map of the earth beneath the Yellowstone National Park (pictured top left). Previous research discovered a smaller magma chamber (illustrated right and in red bottom left) indirectly beneath the surface, but this latest chamber (shown in yellow bottom left) sits 12 to 28 miles (19 to 45km) beneath the supervolcano and measures 11,035 cubic miles (46,000 cubic km). Around 98 per cent of the chamber consists of hot solid rock, while the rest is molten. This chamber is four times bigger than the magma chamber above it, but the study said the supervolcano is not posing any additional threat than it was before.
Toothbrush to check your DNA for onset of diseases such as cancer and Alzheimer's could lead to a revolution in health care
Your toothbrush could warn you about the onset of diseases such as cancer and Alzheimer's, technologists have said. Tiny microchips - known as nanopore sequencers - can decode DNA into a digital format that can then be assessed against genetic markers that are known to indicate disease. This is seen as a watershed in science and could lead to a revolution in health care.
- Lasers reveal what taste LOOKS like: Live imaging of the tongue shows buds reacting to flavours for the first time
- How being attractive can ruin your career: Good-looking men get less job offers because they intimidate bosses, says study
- The Apple Watch laid bare: Tech experts take the timepiece apart to reveal what's inside - including its tiny battery
- Could SPACE LASERS heat our homes? Scientist wants to build satellites which harvest sunlight - then shoot beams of energy down to earth
- Will secret tunnel inside the bowels of Aztec pyramid reveal long-lost tomb of Teotihuacan's first king? Archaeologists find 'large quantities' of liquid mercury used in primitive burial
- William Shatner unveils plan to save California from drought: Star Trek actor wants $30 billion to build a 'water highway'
- Sky takes on Blinkbox: Buy and Keep movie rental service is now open to everyone in the UK and Ireland
- Has the Easter Island 'hat' mystery been solved? Red volcanic rocks were rolled up ramps to sit on top of the iconic statues
- Who you gonna (cat) call? Ratbusters! Animal charity lends homeless moggies to householders to scare away rodents
- iSmash! Video reveals 'impact-resistant' Apple Watch SHATTERS when dropped
- The FM radio hidden in your SMARTPHONE: Mobile manufacturers are denying users the chance to listen to radio for free
- For sale, the 'world's largest dinosaur skull': 9ft-long intact Triceratops fossil is set to reach $1.8 million at auction
- 40,000-year-old baby teeth belonged to the OLDEST humans in Europe - and the group may have helped wipe out Neanderthals
- Older than Stonehenge: Britain's 'oldest tree' is feared to be dying after more than 4,000 years
- Selling on eBay? Make the asking price an ODD number: Economists discover the simple trick can attract higher offers
- 'Goldilocks' mug keeps hot drinks at the perfect temperature from the first sip to the last drop
- Growing old gracefully for almost twice as long: Scientist believes he has unlocked the key to slowing down the ageing process and expects to live to 150
- Growing old gracefully for almost twice as long: Scientist believes he has unlocked the key to slowing down the ageing process and expects to live to 150
- Now conspiracy theorists say there is a 'hidden army' on Mars: Absurd theory suggests a bunker, people and missiles can be seen on the red planet
- iSmash! Video reveals 'impact-resistant' Apple Watch SHATTERS when dropped
- The FM radio hidden in your SMARTPHONE: Mobile manufacturers are denying users the chance to listen to radio for free
- Has the Easter Island 'hat' mystery been solved? Red volcanic rocks were rolled up ramps to sit on top of the iconic statues
- 'Goldilocks' mug keeps hot drinks at the perfect temperature from the first sip to the last drop
- Lasers reveal what taste LOOKS like: Live imaging of the tongue shows buds reacting to flavours for the first time
- 'Crab' micro-car drives sideways, turns on the spot and can SHRINK to make parking in tight spaces easier
- 40,000-year-old baby teeth belonged to the OLDEST humans in Europe - and the group may have helped wipe out Neanderthals
- UK could 'decline and fall just like the Roman Empire' because Britons have lost a desire for innovation, claims author
- Selling on eBay? Make the asking price an ODD number: Economists discover the simple trick can attract higher offers
- How being attractive can ruin your career: Good-looking men get less job offers because they intimidate bosses, says study
- How your THOUGHTS can fuel brain tumours: Scientists reveal how cancer hijacks the process of thinking
- MOST READ IN DETAIL
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Meet J-awwww-s, the world's cutest shark! Rare beast identified after being discovered off the Gulf of Mexico
An extremely rare species of shark has been discovered off the Gulf of Mexico. However, this little critter is more likely to get you cooing rather than crying out in fear. The tiny nipper - measuring just 5.5 inches long - was caught during a 2010 government research trip and its body remained frozen while biologists went about identifying it. This week scientists revealed the dinky creature is a pocket shark - a miniature variation of the more popular kinds. The young male is the second of its species ever seen.
The Apple Watch laid bare: Tech experts take the timepiece apart to reveal what's inside - including its tiny battery
Tech experts at California-based iFixit have completed a so-called 'teardown' of the 38mm Sport model (pictured inset) of Apple's watch. This teardown reveals a 205mAh battery (pictured main) and Apple's S1 chip. The Watch also features an accelerometer, gyroscope and heart rate sensor. The hotly-anticipated device began shipping to customers globally who had pre-ordered earlier today, but it is not available to buy in Apple Stores.
How Lenin's corpse looks better with age: Scientists reveal experimental embalming methods used on the Soviet leader
Vladmir Lenin may have been dead for 90 years, but his corpse looks better than the day he passed. This is the claim made by his embalmers, who have developed bizarre techniques to maintain the look and feel of the communist revolutionary's body. They brag that their 'quasibiological' science has been the result of almost a century of fine-tuning, creating a science that has benefited real-world medical applications. The gruesome job is the responsibility of a team known as the 'Mausoleum group' which, at its peak, involved 200 scientists working in a lab dedicated to the former leader's corpse. Lenin is pictured inset in 1918, six years before his death.
Pictish fort discovered on remote sea stack: Iron Age stronghold off Scottish coast may have been look-out post to protect against raiders
Archaeologists uncovered the fort on top of the 20-foot-high Dunnicaer sea stack (pictured left) near Stonehaven in Aberdeenshire (shown on the map bottom right). They believe it may have been one of a line of forts along the Scottish coast. They found the remains of stone walls (shown being excavated top right), post holes, ramparts and a charcoal filled stone fireplace. Inaccessible at high tide, the fort would have provided a base of power over the surrounding land and sea.
Bicycle powered by HANDS set to beat speed record - and the aluminium frame is controlled using the cyclist's HEAD
Mechanical and composites engineers and students from Plymouth University have developed a Human Powered Vehicle (HPV) (pictured inset) which they hope will set a new arm-powered speed record in the Nevada desert in September. Piloted and powered by paracyclist Liz McTernan (pictured main), it needs exceed 21.39mph (34.42 km/h) over 656ft (200-metres) to beat the current women's benchmark.
Did a METEOR change the course of Christianity? Chelyabinsk-like fireball may have made Paul the Apostle convert
An astronomer at the Planetary Science Institute in Tucson, Arizona, claims that Paul the Apostle may have experienced a vision on the road to Damascus in 30AD (illustrated in the painting by Michelangelo on the left) that was caused by a meteor similar to the one over Chelyabinsk in Russia (top right). He argues that the sound of the explosion could have been interpreted as a divine voice and the UV radiation from the blast (bottom right) could have caused temporary blindness called photokeratitis. Many argue that without Paul's influence, Christianity would be a very different religion.
Is Jay Z's Tidal a FLOP? App's ranking plummets less than a month after its launch
Where your computer goes to die: Shocking pictures of the toxic 'electronic graveyards' in Africa where the West dumps its old PCs, laptops, microwaves, fridges and phones
A new report revealed 41 million tonnes of e-waste was discarded globally in 2014 and Africa has become the dumping ground for it. The Agbogbloshie landfill in Ghana (pictured) is just one where mountains of broken television sets, microwaves, computers and refrigerators from countries all over the world are dumped. Transporting broken appliances known as e-waste is illegal but brokers fraudulently label the products as reusable so they can be shipped, campaigners have said. Young men at the site brave toxic fumes - and the poisonous elements that leak from some appliances - to sift through the waste in the hopes of finding something worth selling (bottom right). Others burn components (inset) to recover scrap metal which can be sold at market.
How it feels to be INVISIBLE: Virtual reality experiment tricks people into thinking their body has disappeared
Neuroscientists from Sweden's Karolinska Institutet asked participants to wear a virtual reality headset looking down towards their body. Instead of seeing their body, they were shown either the body of a mannequin or an empty space where their body should have been (illustrated). A researcher then stroked the participant's body with a large paintbrush while simultaneously moving another paintbrush in the corresponding location in the empty space below the cameras, as if he were touching an 'invisible body'.
Did YOU spot the Lyrids last night? Spectacular images reveal meteors streaking across the night sky during annual shower
Photographers in the UK captured the Lyrid meteor shower in the sky last night. It occurs every year around 16 to 25 April, so you can still catch some meteors tonight and tomorrow. The strength of the showers vary from year to year and most years there are no more than 20 meteors an hour. But in 1982 Americans counted nearly 100 an hour and in 1803 it was as high as 700 an hour. Top right and left are meteors above Porthcurno beach in Cornwall, while bottom right is the view at the Forest of Bowland in Lancashire, in the early hours of this morning.
The scanner that can scour an entire PLANE: Mobile device can find weapons and drugs hidden onboard
Romanian company MB Telecom has revealed the Roboscan 2M Aeria. It uses a cone of radiation to sweep across planes (shown left) and look inside to find contraband like weapons (top right). The device is accurate enough to find a filament in a light bulb. But the radiation it emits is not safe for passengers yet. The company notes that, while passengers and their luggage are thoroughly inspected at airports (bottom right), there is no such inspection process for jets arriving at small private airports with low security - but this device fills that 'gap'.
Now THAT'S a spin cycle! Exercise bike washes your dirty laundry as you pedal
The Bike Washing Machine (main picture) is being developed by designers at the Dalian Nationalities University in China. The front wheel has been replaced with a drum where clothes can be placed with water and detergent. When the user pedals, it drives the drum (shown in the inset) but also produce electricity that can be stored for later use.
When supermassive black holes COLLIDE: Best-ever 3D simulation reveals how space-time warps during the cataclysmic event
University of Illinois scientists have created the first 3D simulation of merging black holes (shown). It shows what happens when two supermassive black holes collide. Material swirls around the objects in a quasar and jets fire out from the poles. It comes after two black holes were found to be seven years from merging.
World's most powerful telescope to launch in 2018: 'Time machine' will peer back over 13.5 billion years to see first stars forming
Nasa describes the telescope as a 'powerful time machine with infrared vision that will peer back over 13.5 billion years to see the first stars and galaxies forming out of the darkness of the early universe.' The James Webb telescope (inset) should further the search for alien life by opening a new window on planets outside the solar system that might have water, says the Houston-based agency. JWST's main mirror will be 21ft (6.5 metres) in diameter, three times as large as Hubble's.
How Inuit women were wearing fur THONGS 130 years ago! Sexy seal underwear was donned when guests visited
The garment (pictured) is part of an animal-skin display at National Museum of Denmark. Known as a 'naatsit', it was worn during the 19th century in Greenland and other arctic regions. It is decorated using glass beads and different coloured strips of fur. Depending on the weather, the naatsit was often the only garment worn. Other items include a diaper made from reindeer skin and fur and a pair of pantyhose are also on display.
Is this the apocalypse, ask locals: Hundreds evacuated as Chilean volcano erupts for first time in 40 years and sends huge plume of ash into the sky
Volcano Calbuco, in southern Chile, erupted at around 6pm local time, as 1,500 residents from the town of Ensenada were forced to flee their homes while a 12 mile exclusion zone was established. The eruption forced a cloud of ash and dust into the atmosphere which was visible from up to 100 miles away in neighbouring Argentina. Residents from near the volcano described people crying in the streets in the aftermath of the explosion, which is the first there since 1972
Does YOUR state believe in global warming? Interactive map reveals spread of opinion on climate change across the US
The map, created by Yale University, reveals public opinion in all 50 states, 435 districts and 3,000 counties. Overall, just over 60 per cent of Americans believe global warming is taking place and nearly half blame humans for the change. But within the US, opinions on global warming vary wildly. People in California, for instance, are far more worried about the warming planet than those in parts of the central US. Pictured are the percentages of people who are worried about climate change, divided by different counties. The warmer colours represent a higher percentage of people concerned with the impact of warming.
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All around the world... and beyond
British photographers Fiona Rogers and Anup Shah captured apes in Indonesia and Borneo - and highlighted how human our evolutionary cousins are.