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Phys.org / Jellyfish nebula may be the scene of two stars going supernova
The star that formed the Jellyfish nebula may have had a partner star that exploded 100,000 years earlier, according to international researchers, who say that this may be the first known discovery of a binary star system ...
Phys.org / Can a robot tutor give too much help? Why timing matters
A learner stands in a room with a bottle, a cup and a book. The task is to figure out, step by step, where each object belongs in the room. Under the table? Or perhaps on the chair? A humanoid robot gives the instructions—but ...
Medical Xpress / Your gut can get jet lag too: How not to waste the first days of your vacation
A dream vacation, an exotic destination, a long-haul flight and finally some well-deserved rest. The problem is that many travelers arrive at their destination only to spend the first days of their vacation struggling with ...
Phys.org / AI may not make us stupid, but relying on it could weaken the skills built through practice
The worry of becoming stupid isn't new; it dates back to the time of the Greek philosopher Socrates, who insisted that writing would destroy memory and weaken the mind. Then came calculators, GPS and computers, all of which ...
Phys.org / Reflooding the Aral Sea could prevent massive CO₂ emissions
About 90% of the Aral Sea has dried up. The exposed sediments have already released enormous amounts of carbon dioxide (748 megatons) since 1960. However, through restoration, the lake could once again become a carbon sink. ...
Phys.org / Engineers observe quantum heat waves at room temperature
Efficient heat management in solids is key to advancing the next generation of electronics. However, wave-like heat movement—known as phonon focusing—had been observed only at extremely low, or cryogenic, temperatures, limiting ...
Medical Xpress / Mind-wandering mechanisms change depending on eye state
A type of brain activity linked to arousal and attention can track mind wandering. But research conflicts on whether this activity promotes or hinders mind wandering. Esther Thielking of Barnard College and colleagues explored ...
Phys.org / Chocolate syrup-like fluid stores multiple interacting memories
Animals and electronic devices aren't the only things with memory. Materials can retain memories of past deformations in their microscopic structure. A common example is a crease in a sheet of paper that has been folded then ...
Medical Xpress / Exceptional memory in 80s defies simple Alzheimer's genetic risk explanation
Many people assume that some memory decline is an inevitable consequence of getting older. But a select group of older adults, known as "SuperAgers," reach their 80s and 90s while retaining memory performance as good as or ...
Phys.org / Young rift flanks suggest Venus remains tectonically active
Venus is an inhospitable place, with temperatures soaring to several hundred degrees Celsius (hundreds of degrees Fahrenheit) and no oceans like those on Earth. Planetary scientists long believed Venus was geologically dormant. ...
Phys.org / Cutting out the noise: How horseshoe bats adapt their echolocation behavior in colonies
Imagine searching for a gemstone in a dark cave: You use a flashlight, looking for a rainbow-colored glint in the darkness. Now, imagine 10 other people in the cave with you, using different-colored flashlights at the same ...
Medical Xpress / Could sparkling water be a better choice for your teeth?
Findings from a new study comparing the effects of different beverages on mouth acidity suggest that unsweetened sparkling water may be better for your teeth than sugar-sweetened soda.
