Cassini scientists are baffled by the presence of the red lines, with some suggesting they may be exposed ice with chemical impurities, or the result of outgassing from inside Tethys.

Today, the service announced that it has gone out of beta testing and is now available across the US, Canada, the UK, Germany, Austria and Switzerland.

Windows 10, the biggest update Microsoft has made to its computer software, has finally launched after a massive beta test programme.

Engineers at Seoul National University in South Korea studied water striders (pictured) to develop the characteristics of their tiny robot.

Archaeologists found two pieces of thigh bone (pictured) at a site close to Xuchang City in China where skull fragments of an extinct 100,000-year-old human species were previously found.

Volunteer Camille Jacquey unearthed the tooth in the rocky soil of the Arago Cave in Tautaval in the French Pyrenees. Experts have described it as a 'major discovery'.

The app could be said to evoke the film Single White Female in which Alison 'Allie' Jones, played by Bridget Fonda (pictured), becomes obsessed with her flatmate.

The much anticipated new version of its $69 TV box is expected to be unveiled in September alongside new iPhones. It is expected to have a new, touchpad remote and boosted performance.

Nasa astronaut Terry Virts added an antacid tablet to a globule of water on the International Space Station to see what would happen. In low gravity it fizzed in mid-air, spitting water in all directions.

Marketing experts at Valdosta State University, Georgia and the University of Nebraska-Lincoln, studied how much truth lies in glossy adverts in women's magazines such as Vogue and Elle.

Analysis of early human fossils by researchers at Simon Fraser University in British Columbia, Canada, suggests it was 'Handy man' not Homo erectus who were first to migrate from Africa.

Security researchers Sandvik and Auger demonstrated at a West Virginia firing range how they could change the target by feeding inaccurate data to the targeting computer.

Researchers at Nasa's Goddard Space Flight Center in Greenbelt, Maryland showed how vitamin B3, a building block for life, can be made in space when ice is bombarded with radiation.

A Bournemouth-based chemistry teacher explains bacteria and yeast dwelling in dog hair are mostly responsible for the nasty odour.

Made by a Chinese start-up, the 5.5-inch model witha 13 megapixel camera is the follow-up to last year's popular OnePlus One.

Some of these craters and other features now have official names, inspired by spirits and deities relating to agriculture from a variety of cultures, such as Haulani, after the Hawaiian plant goddess.

The squid can be seen feasting on a fish as it is hauled out of the ocean onto a fishing vessel while Russian sailors try to prod it with a long pole from the side of the boat to try to save their catch.

A doom-laden US study in 1972 predicted that the earth would run out of food and resources, becoming uninhabitable by around 2050. British scientists now claim we have a little more time.

Atlantic spotted dolphins and bottlenose dolphins were studied by The Wild Dolphin Project in The Bahamas over the space of 30 years, providing insight into how the species rely on each other.

The 4K video is a remake of a video made by the Texas-based Slow Mo Guys in 2011. The latest video shows one half of the pair, Daniel Gruchy, inside a 6ft water balloon as it fills with water.

Extroverts are far more likely to indulge in impulsive spending, have higher credit card debts and reduced savings, researchers say.

Dutch bank ING Netherlands has released the voice-activated payment feature through its mobile banking app, providing a quick and easy alternative to entering your PIN.

New Horizons spotted a new, apparently less lofty series of mountains on the lower-left edge of Pluto's best known feature, the bright, heart-shaped region named Tombaugh Regio.

The flying machines were controlled by competitors wearing goggles with video links at a difficult course at Drinkwater Park in the north Manchester suburb of Prestwich.

Researchers in Israel have revealed how ants use team work to carry large chunks of food. A carefully balanced system of leaders and lifters allows ants to coordinate their efforts.

Residents of the San Francisco Bay area should prepare for a major earthquake 'any day now' according to a scientist from the US Geological Survey.

Illinois-based Motorola has launched a trio of smartphones in an attempt to dominate both the high and low end of the mobile market.

Scientists at Brookhaven National Laboratory in New York used computer models to simulate how strands of molecules like RNA may have first emerged on the early Earth (illustrated).

Biologists at North Carolina State University found humans have similar stomach acidity to scavengers. A thermograph of heartburn in the stomach is shown.

The patent awarded by the US Patent and Trademark Office shows a design for earbuds with a bendy rubber outside part that's designed to mould to a user's ear so the buds don't fall out easily.

Scientists from King's College London analysed genetic data from 12,500 identical and non-identical twins to assess the importance of genetic factors in academic achievement.

A report suggests China wants to exert influence over every part of the tech industry and web in china, from social media to semi-conductors.

The first known fossil of a four-legged snake has been discovered by scientists who believe it may help unravel the mystery of how serpents lost their legs.

The in-depth review - the first in almost 40 years for a Nasa exploration class vehicle - provides a final look at the design of the rocket before full-scale construction begins in 2018.

The front of the vehicle is fitted with a fake cannon so it looks like a standard main battle tank, with 12 Spike anti-tank missiles hidden at its rear.

A study by geneticists at Harvard Medical School has found three native tribes in the Amazon who share more DNA with Aborigines from Australasia than any other modern population.

Scientists in Brazil have uncovered evidence that between eight and 50 million people lived around the Amazon river by 1492 and farmed extensively in the region, shown in the map pictured.

A Nasa-funded study has found it may be possible to cut the cost of missions to the moon by 90 per cent by working with private companies who could dig up hydrogen fuel from the lunar surface.

Experts at the University of Dundee built the model based on a skull found at Boatbridge Quarry in Thankerton. The man is unusually tall for the Copper Age, standing at 5 foot 11 (1.8 m).

Computer scientists at the Karlsruhe Institute of Technology, Germany, developed the new technique that reads a person's thermal signature (right).

A survey of managers has shown 70 per cent of them would consider using a robot on their team, suggesting a future like that depicted in the TV series Humans (pictured) may become a reality.

Dubbed Robo-Mate, the German technology adds metallic supports to arm, legs and the back to allow workers to lift ten kilograms, making it feel like just one.

Footage of the slugs was captured by Japan-based Dive Store Exiles. Named Jorunna parva, the slugs have been dubbed 'sea bunnies' because of their white bodies and ear-shaped spines.

EXCLUSIVE: Peter Worden (pictured), the ex-head of Nasa's Ames Research Center, said the team made the calculation 'as we were waiting for the press conference announcing this to start'.

The blue marble was captured by the Earth Polychromatic Imaging Camera (Epic) and created by combining three separate images to show our planet in incredible detail.

Nasa is to consider sending the New Horizons probe to one of two frozen objects in the ring of debris orbiting four billion miles from the sun. The spacecraft has power to last 20 more years.

A study of worms by scientists at Northwestern University in the US showed adult cells abruptly begin their downhill slide when they reach reproductive maturity.

Researchers in Princeton have discovered a new particle that can act as matter and antimatter simultaneously, and could one day help to build a more stable quantum computer.

The University of Queensland study found that after the birth of their first child men believe more strongly that a woman's most important role in life is being a mother.

The amazing incident took place at Hluhluwe-Imfolozi Park in South Africa, and experts say the creature may be using the animal to avoid predators - or just catch a lift.

The Apple Watch and Apple Watch Sport models will be sold at more than 300 Best Buy stores in time for the holiday shopping season, a spokeswoman for Apple said.

Overall cosmetic appearance was rated as the most essential factor, girth was third and length only sixth out of eight aspects, say researchers writing in the Journal of Sexual Medicine.

A domestic cat - possibly the companion of a Roman soldier stationed at the site in Gloucester - is believed to have made the print as the tile dried in the sun in around 100AD.

Dutch airline KLM has teamed up with Delft University of Technology to produce concept designs that burn cryogenic hydrogen.

The latest images reveal signs of recent geologic activity, something scientists hoped to find but didn't expect, along with unexplained layers of haze several times higher than scientists predicted.