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When people are unhappy they often go out and buy something in order to make themselves feel better. One of the drivers for this, psychologists report, could be a fundamental unhappiness with personal relationships.

'Halloween Crack' threatens to cut off British Antarctic station

The British Antarctic Survey (BAS) has made the decision to shut down its Halley VI Research Station on The Brunt Ice Shelf for the winter after a new crack in the ice appeared not far from the remote outpost.

New approach to antidepressant via drug discovery

A new molecule has proved promising in laboratory test in relation to antidepressant therapy. This relates to a better understanding as to how the brain regulates depression and anxiety.

Tightest material knot ever is achieved

Materials scientists have made the most tightly knotted physical structure ever. This feat could lead to a new generation of advanced materials being manufactured.

Link made between concussion and Alzheimer’s

Is there a link between concussion and the later development of Alzheimer’s disease? Although there are different factors that could result in the neurodegenerative disease, researchers, in a new report, focus on one potentially important aspect.

Gene Cernan, last man to walk on the moon dead at 82

Gene Cernan passed away on Monday at age 82. Although his family did not release details of the cause of the former astronaut’s death, he had been in ill health for several months. Cernan is being remembered as the last human to walk on the moon.

Studying a person’s blood says how old they are

Scientists have found a way to accurately determine how old a person is biologically from studying some newly identified biomarkers in the blood. This represents a step forward in estimating age and this will lead to medical benefits.

Yukon caves yield evidence of earliest humans in North America

On a limestone ridge, overlooking the upper Bluefish River in Yukon, Canada, are three small caves. Buried in the cave deposits are the bones of long-gone animals, some with marks made by stone tools wielded by possibly North America's earliest humans.

Essential Science: Using bacteria to generate useful chemicals

Bacterial cells have been engineered to produce quantities of a chemical called serine. This chemical has a useful function – it is used to manufacture detergents and its acts as a building block for many industrially important chemicals.

Controversial Stonehenge tunnel given OK by U.K. government

Plan to build a 1.8-mile tunnel near Stonehenge and widen nearby highway A303 has been given the green light by the British government. Construction is estimated to cost £2 billion ($2.4 billion).

New carbon dioxide recycling method aids biofuels

A new method for converting carbon dioxide into carbon monoxide has been developed. This process step could be used to drive efficiencies in biofuel production, as well as aiding with the manufacture of some chemical products.

Scientists engineer human stomach for research

Scientists have successfully grown functional stomach and intestinal tissues. This has been created to study diseases and new drugs, and looking at the interactions between health and disease.

Depressions on surface of Mars offer clues for life

Was there life on Mars? This question continues to interest many people. The area to focus on, according to a new study, are the surface features, especially the depressions located close to volcanoes.

SpaceX launches, lands rocket for first time since September blast

SpaceX on Saturday successfully launched and landed its first unmanned Falcon 9 rocket since a costly and complicated launchpad explosion in September.

Women who hold a baby on the left side bond more closely

Women who hold their baby on their left side tend to bond more closely with their child than women who tend to hold their baby on the right hand-side, according to a new psychological study.

SpaceX poised to launch for first time since Sept blast

SpaceX is poised to launch a Falcon 9 rocket on Saturday, marking its first return to flight since a costly and complicated launchpad explosion in September.

Sugar molecule slows down respiratory disease

A type of sugar molecule can reduce the inflammatory response and progression of emphysema, according to a new study. This could lead to a new, biological drug to treat chronic obstructive pulmonary diseases.

French, US astronauts install batteries outside space station

French astronaut Thomas Pesquet floated into space on his first-ever spacewalk Friday, and helped install three new, refrigerator-sized lithium-ion batteries to upgrade the power system at the International Space Station.

Construction of NASA's massive Space Launch System stand complete

NASA's enormous Space Launch System (SLS) is an advanced space vehicle, the world's most powerful rocket. It will be used to launch astronauts on missions to distant planets. An enormous stand has been built to test the rocket's biggest fuel tank.

Scientists closer to solving mystery of Earth's core

Japanese scientists say that silicon is likely the mystery element in the Earth's inner core, claiming progress on solving one of the planet's deepest secrets.

Asteroid just flew by Earth and we barely saw it coming

Early Monday morning, while people on the East Coast were making coffee, dropping kids off at school, and cursing in traffic, a space rock as big as a 10-story building slipped past Earth.

Brain ‘re-wires’ after pregnancy

When a woman becomes a mother it is a life-changing experience. While this is obvious in many ways, new research indicates that the brain undergoes changes and the changes persist for many years.

Byzantine skeleton provides clues to maternal sepsis

While excavating a late Byzantine era cemetery near Troy in modern-day Turkey, researchers discovered an 800-year-old skeleton of a woman. Two calcified nodules found at the base of her chest have yielded the complete genomes of two pathogenic bacteria.

Scientists develop new theory on how Earth's moon was formed

A new theory about how Earth’s moon was formed has been advanced. It speculates that several extra-terrestrial objects struck Earth creating a series of small moons or moonlets. These moonlets gradually merged to form the moon we see today.

Tauros program would bring back Europe's famed Auroch cattle

Scientists are well under way to resurrecting an ancient breed of land herbivore, the auroch, an ancestor of the cattle we know today. The auroch roamed the plains of the European continent for 250,000 years until the very last one died in 1627.

‘Missing’ element discovered in Earth’s core

Japanese scientists have revealed a third major element that makes up the core of the Earth, along with iron and nickel. The search for the third element has been underway for several years.

NASA announces first African-American space station crew member

While African-American astronauts have flown on the space shuttle and have visited the ISS on technical or supply missions, none have ever been a member of the crew. NASA announced Jeanette Epps will become the first black ISS crew member next year.

Researchers turn to sea sponges for building design

Sea sponges seem to be unlikely creatures as to inform us about modern construction, yet researchers have been studying orange puffball sea sponges for inspiration. Of interest is how the sponges avoid buckling under water pressure.

Which freezes faster: Hot water or cold water?

A debate has been raging in the world of physics over whether the long-held theorem that cold water freezes faster than hot water remains correct, and that, instead, hot water freezes faster. We assess the issues.

Essential Science: Heartburn drugs may raise stroke risk

A recent concern has been raised about heartburn drugs and a connection to an increased risk of stroke. This follows earlier studies linking this type of medication to dementia, kidney and heart problems. Digital Journal looks into the issue.

Worms munch nanoparticles to improve sensors

Scientists have used tiny worms to digest nanoparticles wrapped around bacteria. The study has been run to see how cellular forces affect nanomedicine.

Mysterious radio bursts in space detected

Scientists have pinpointed the source of ‘mysterious’ radio bursts coming from outer space. The radio signals have long represented one of the most persistent puzzles in modern astronomy.

Visualizing the effect of stress on the brain

What happens to the brain when a person undergoes a stressful event? What are the longer-term effects of a condition like Post-Traumatic Stress Disorder? These questions have been recently examined by scientists.

Antibiotic spider silk promises improved drug delivery

Researchers are developing a spider silk that has antimicrobial properties, for use with regenerative medicine, wound healing and for drug delivery.

Astronaut Peggy Whitson became oldest woman to walk in space

When she took off for the International Space Station (ISS) in November, Peggy Whitson became the oldest woman to go into space. Yesterday the 56-year-old became the oldest woman to take part in a spacewalk.

Urbanization makes its mark on evolution

Urbanization, that is human development in the form of towns and cities, is affecting evolution, according to a new scientific study. The researchers say this has implications for sustainability and human well-being.

Climate change could result in collapse of major ocean current

Researchers are suggesting that as a result of climate change, Atlantic Ocean current patterns may not be as stable as climate models suggest. This could raise the possibility of a collapse of the ocean's currents, causing a catastrophic change.

Babies' brain growth boosted by stimulus 'nudges'

Gone the do-nothing era of parental responsibility in babies' and children's development. Not left to the fate written in their genes, babies develop best when given helpful parental "nudges," according to Norway's neuropsychologist, Audrey van der Meer.

Sun spins faster on the outside than on the inside

Despite being relatively close to Earth and a well-studied phenomenon there is still much to learn about the Sun. New research by international astronomers has helped to make an important new discovery about our closest star.

Genetic basis of why carnivores eat meat discovered

Researchers have discovered the genetic basis of meat eating. This has come about after a review of the genomes of leopards, tigers, killer whales and Tasmanian devils. The research also raises questions about extinction.

NASA announces two missions to study early solar system

The US space agency NASA announced two unmanned missions to asteroids designed to study one of the earliest eras in the history of the solar system.They have been dubbed Lucy and Psyche, and NASA hopes to launch them in 2021 and 2023, respectively.