to the medieval description. Chronologically, the city appears to have thrived from the sixth to the eleventh centuries, a period that coincides with the height of Silk Road commerce linking East Asia to the Mediterranean. Situated about 70 miles east...

wildfire report, underscoring the intensity of the situation. New York City’s hazy skyline on June 7, 2023, during a period of poor air quality caused by smoke from Canadian wildfires carried in by the wind – © Shutterstock The air quality index in New...

at approximately 4,900 BCE, confirming its construction roughly 7,000 years ago. This timeframe falls within the Neolithic period, a stage when societies across the globe were transitioning from nomadic hunting to settled agriculture. In the eastern...

planet’s surface. In this context, resin production may have been one of several adaptations facilitating survival during a period of rapid ecological change. Looking for Even Older Amber Molecular studies suggest that the genetic toolkit for terpene...

A prominent source of this glow is the binary system R Coronae Australis. The two components orbit each other over a period of roughly 43–47 years. One partner is a red dwarf—small, cool, and exceedingly long‑lived—while the other is a pre‑main‑sequence...

of stars, the telescope can detect planetary transits—tiny dips in brightness that reveal a planet’s size, orbital period and distance from its host. These measurements enable scientists to pinpoint worlds situated in zones where liquid water could...

poorly preserved, each new specimen helps fill a critical gap in the record. The Gujarat find offers a rare glimpse into a period when the group’s diversification was just beginning. Miniature Ancestor of Later Giant Macronarians Phylogenetic analysis...

recorded in Denmark. A Snapshot of Late Viking Power The Rold Treasure dates to the late Viking Age, roughly AD 900–1000, a period of rapid political consolidation in Denmark. It aligns with the reign of King Harald Bluetooth, who unified much of the...

these varied procedures reflect differences in the alleged offense, the animal’s nature, the local legal framework, and the period in question. Some cases centered on a single violent act, while others dealt with broader ecological threats that could...

the microbial evidence neither supports nor contradicts the 1988 radiocarbon dating that placed the fabric in the medieval period. Experts caution that microbial signatures can be introduced at multiple stages—storage, display, restoration—making it...

Construction of the tomb began in 246 BC and reportedly employed seven hundred thousand laborers over a thirty‑eight‑year period. Geophysical models suggest the subterranean palace measures roughly 140 × 110 × 30 metres, with the main coffin chamber...

to let that film collect in the bottom, then just dump it again.” A computer simulation suggested that the optimal waiting period before the second pour is about 15 minutes, whereas Tang typically waited only one or two minutes. “I was surprised and...

those who miss the July event, the next major meteor display will be the Perseids, projected to peak on August 12‑13. That period follows a new Moon on August 12, promising darker skies and a more favorable backdrop for meteor spotting.

their ultimate interment. The Boy of El Plomo, for instance, appears to have trekked roughly 1,700 miles over a nine‑month period, a journey that formed part of a broader ritual sequence linking the terrestrial and divine spheres. “It was an extended...

than 24,000 years. Makhijani pointed out that cracks have emerged in under half a century, a timescale far shorter than the period required for the waste to become safe. Debate Over Hazard and Accountability U.S. officials maintain that the structure is...

solar barque, an image associated with the daily voyage of Ra across the sky. Meller’s team argues that Europe during this period was not isolated; similar solar‑boat depictions have been documented in northern Europe, indicating that Egyptian‑inspired...

trees lining the green belt. Correspondingly, atmospheric CO₂ concentrations over the desert fell from 416 ppm in the dry period to 413 ppm during the wet months, mirroring the spatial extent of the planted strip. Vegetation grows on the banks of the...

of calcite overgrowths on certain fractures allows us to attribute these interventions, at least partially, to prehistoric periods—a hypothesis that will be confirmed by a multidisciplinary study currently underway.” Ongoing mineral‑dating work aims to...

the creature at roughly 210 million years ago, in the Late Triassic. Unlike the massive sauropods that would dominate later periods, this dinosaur was relatively slender, measuring about 4.5 meters (15 feet) in length and weighing an estimated 222...

between 24,000 and 30,000 earthworks throughout southwestern Amazonia. About two‑thirds of these may belong to the Aquiry period, although the total fluctuates based on assumptions about site distribution and the extent of vegetation cover. To gauge the...