ScienceDaily: Quirky - October 09, 2024
Top quirky research news
After injury, these comb jellies can fuse to become one
Researchers have made the surprising discovery that one species of comb jelly (Mnemiopsis leidyi) can fuse, such that two individuals readily turn into one following an injury. Afterwards, they rapidly synchronize their muscle contractions and merge digestive tracts to share food.
Image: nazz shoots/Shutterstock.com
Asymmetric placebo effect in response to spicy food
The expectations humans have of a pleasurable sensation asymmetrically shape neuronal responses and subjective experiences to hot sauce, according to a new study.
Holographic 3D printing has the potential to revolutionize multiple industries
Researchers have developed a novel method of 3D printing that uses acoustic holograms. The process is called holographic direct sound printing (HDSP). It builds on a method introduced in 2022 that described how sonochemical reactions in microscopic cavitations regions -- tiny bubbles -- create extremely high temperatures and pressure for trillionths of a second to harden resin into complex patterns. Now, by embedding the technique in acoustic holograms that contain cross-sectional images of a particular design, polymerization occurs much more quickly. It can create objects simultaneously rather than voxel-by-voxel.
New insights into how Mars became uninhabitable
NASA's Curiosity rover, currently exploring Gale crater on Mars, is providing new details about how the ancient Martian climate went from potentially suitable for life -- with evidence for widespread liquid water on the surface -- to a surface that is inhospitable to terrestrial life as we know it.
Space oddity: Most distant rotating disc galaxy found
Researchers have discovered the most distant Milky-Way-like galaxy yet observed. Dubbed REBELS-25, this disc galaxy seems as orderly as present-day galaxies, but we see it as it was when the Universe was only 700 million years old. This is surprising since, according to our current understanding of galaxy formation, such early galaxies are expected to appear more chaotic.
Are auditory magic tricks possible for a blind audience?
Magic tricks make the impossible seem possible. Magicians have long captivated audiences with visual tricks, such as pulling a bunny from a hat or sawing someone in half, but tricks that rely on sound are scarce. A new article explores why creating a magical experience using only sound may be challenging and underscores the importance of making magic accessible to people with blindness.
Pterosaurs needed feet on the ground to become giants
A study determines when and how pterosaurs went from tiny tree-climbers to towering terrestrial titans Flying reptiles first came down from the trees in the mid-Jurassic Period, paving the way for giants with 10-meter wingspans. Fingers and toes point to secrets of flying reptile success.
Scientists uncover auditory 'sixth sense' in geckos
Researchers discover that geckos use a mechanism usually associated with balance to sense vibrations, leading to new insights about how animals hear and feel their surroundings.
Hoarding disorder: 'Sensory CBT' treatment strategy shows promise
Rehearsing alternative outcomes of discarding through imagery rescripting shows promise as a treatment strategy for people who hoard, a study by psychology researchers has shown.
In odd galaxy, NASA's Webb finds potential missing link to first stars
Looking deep into the early universe with NASA's James Webb Space Telescope, astronomers have found something unprecedented: a galaxy with an odd light signature, which they attribute to its gas outshining its stars. Found approximately one billion years after the big bang, galaxy GS-NDG-9422 (9422) may be a missing-link phase of galactic evolution between the universe's first stars and familiar, well-established galaxies.
Turning brain cells on using the power of light
Researchers have developed a noninvasive way of using bioluminescent optogenetics to activate parts of the brain.
According to a new study, colonies of ants began farming fungi when an asteroid struck Earth 66 million years ago. This asteroid impact caused a global mass extinction but also created ideal conditions for fungi to thrive. Innovative ants began cultivating the fungi, creating an evolutionary partnership that became even more tightly intertwined 27 million years ago and continues to this day.
2-billion-year-old rock home to living microbes
Pockets of microbes have been found living within a sealed fracture in 2-billion-year-old rock. The rock was excavated from the Bushveld Igneous Complex in South Africa, an area known for its rich ore deposits. This is the oldest example of living microbes being found within ancient rock so far discovered. The team involved in the study built on its previous work to perfect a technique involving three types of imaging -- infrared spectroscopy, electron microscopy and fluorescent microscopy -- to confirm that the microbes were indigenous to the ancient core sample and not caused by contamination during the retrieval and study process. Research on these microbes could help us better understand the very early evolution of life, as well as the search for extraterrestrial life in similarly aged rock samples brought back from Mars.
Zooplankton play limited role in cleaning contaminated water
Scientists were recently surprised to find that the natural community of zooplankton -- tiny, aquatic animals known to graze on bacteria -- present in freshwater and saltwater do not clean water that is contaminated with fecal microorganisms.
Widespread ice deposits on the moon
Deposits of ice in lunar dust and rock (regolith) are more extensive than previously thought, according to a new analysis of data from NASA's LRO (Lunar Reconnaissance Orbiter) mission. Ice would be a valuable resource for future lunar expeditions. Water could be used for radiation protection and supporting human explorers, or broken into its hydrogen and oxygen components to make rocket fuel, energy, and breathable air.
Iron nuggets in the Pinnacles unlock secrets of ancient and future climates
Small iron-rich formations found within Western Australia's Pinnacles, which are part of the world's largest wind-blown limestone belt spanning more than 1000km, have provided new insights into Earth's ancient climate and changing landscape.
Study of monkey fossils found in cave sheds light on the animals' extinction centuries ago
By studying rare fossils of jaws and other skull parts of a long-extinct Caribbean monkey, a team of researchers says it has uncovered new evidence documenting the anatomy and ecology of an extinct primate once found on Hispaniola -- the Caribbean island on which Haiti and the Dominican Republic are located.
NASA's TESS spots record-breaking stellar triplets
Professional and amateur astronomers teamed up with artificial intelligence to find an unmatched stellar trio called TIC 290061484, thanks to cosmic 'strobe lights' captured by NASA's TESS (Transiting Exoplanet Survey Satellite).
Bottlenose dolphins 'smile' at each other while playing
Dolphins are extremely playful, but little is known about how they -- and other marine mammals -- communicate during playtime. New research shows that bottlenose dolphins (Tursiops truncates) use the 'open mouth' facial expression -- analogous to a smile -- to communicate during social play. The dolphins almost always use the facial expression when they are in their playmate's field of view, and when playmates perceived a 'smile,' they responded in kind 33% of the time.
Most tropical lightning storms are radioactive
Researchers have known for several decades that thunderstorms can act as miniature particle accelerators that produce antimatter, gamma rays and other nuclear phenomena. But they did not know how common the phenomenon was. In observations taken by a retrofitted U2 spy plane, they've discovered essentially all large thunderstorms produce gamma rays in many dynamic, unexpected and unknown ways.
Scientists create flies that stop when exposed to red light
Ever wish you could stop that fruit fly on your kitchen counter in its tracks? Scientists have created flies that halt under red light. In doing so, they discovered the precise neural mechanisms involved in stopping. Their findings, published this week in Nature, have implications far beyond controlling fly behavior. They demonstrate how the brain engages different neural mechanisms depending on environmental context.
How a bacterium becomes a permanent resident in a fungus
An organism as a tenant in another -- in biology, this often works quite well. Researchers have now shed light on how such a partnership of a cell in a cell can establish itself.
AI simulation gives people a glimpse of their potential future self
'Future You' is a generative AI tool that enables users to have a simulated conversation with a potential version of their future selves. The chatbot is meant to reduce users' anxiety, improve positive emotions, and guide them toward making better everyday choices.