The cause of Mars’ strongest quake The strongest quake recorded on Mars, which lasted six hours but left no visible signs on the planet’s surface, was caused by tectonic activity rather than a colliding asteroid. While scientists believe Mars does not have plate tectonics like Earth, the quake was likely caused by the release of […]
The strength of the wind has an important influence on ocean circulation. This is particularly true for extreme events such as storm fronts, tropical storms and cyclones. These weather patterns, which last from a few days to a few weeks, will change in the future due to climate change. In particular, the average energy input […]
Humans hunting lions 48,000 years ago Neanderthals living about 48,000 years ago hunted and carefully butchered a cave lion, an extinct species, according to an analysis of lion remains uncovered in southeastern Germany. The study reveals the “earliest direct evidence of a large predator being hunted and killed in human history,” said Gabriele Russo, author […]
Voyager II, a NASA solar system exploration spacecraft launched in 1977, measured highly unusual magnetic fields around Uranus and Neptune. Scientists considered exotic states of so-called superionic ice as a possible explanation due to these states’ increased electrical conductivity. A new work demonstrates the existence of the previously undiscovered Ice XIX phase. It shows that […]
Oldest human North American footprints Scientists have used new methods of analysis to trace human footprints, the earliest known fossilized human footprints in North America, in New Mexico’s White Sands National Park. Researchers examined quartz grains under the tracks using optically stimulated luminescence dating to determine that the layers were at least around 21,500 years […]
roof Concrete sidewalks, black asphalt streets, traffic, brick and steel buildings. These common city elements can retain heat and increase temperatures in a phenomenon called the urban heat island effect. With increasingly warming temperatures during the summer months, urban cities like Chicago need to arm decision makers and communities with information about strategies to help […]
Moons crashing together may have created Saturn’s rings Saturn’s iconic rings may be the result of a collision between two moons made of ice and rocks. Scientists simulated almost 200 collision scenarios and found that the impact of two moons roughly the size of Saturn’s current moons could disperse into icy rings, consistent with the […]
Galaxies from the early Universe are more like our own Milky Way than previously thought, flipping the entire narrative of how scientists think about structure formation in the Universe. Using the James Webb Space Telescope (JWST), an international team of researchers has discovered that galaxies like our own Milky Way dominate throughout the universe and […]
Human bones in Spanish cave were likely used as tools Ancient humans excavated and modified the skeletons of their buried ancestors to possibly use as tools, according to a study from scientists studying remains at the Cueva de los Marmoles cave in southern Spain. Researchers identified the remains of at least 12 people buried between […]
Billions of tiny particles packed into rechargeable lithium-ion battery electrodes are responsible for storing charge and making it available when it’s needed to do work. X-ray movies of this process show the particles absorbing and releasing lithium ions as the battery charges and discharges. Now, in an important step forward, researchers have used a type […]