The internal compositions of rocky exoplanets correlate with that of their host stars, according to a new study, but not 1:1. This suggests that planet…
For the first time, a high-pressure calcium silicate perovskite (CaSiO3) has been identified as a naturally occurring mineral from Earth’s lower mantle, researchers report. The…
Scientists have provided new insights into how intense thunderstorms drive the injection of water vapor from the troposphere — the atmospheric layer closest to Earth’s…
Jupiter’s iconic Great Red Spot (GRS) – a 16,000-kilometer-wide tempest that has been churning in the planet’s atmosphere for several centuries – extends deeper into…
Intense ivory poaching during the Mozambican Civil War (1977-1992) resulted in the rapid evolution of tusklessness in female African elephants amid a precipitous population decline,…
Newly discovered fossil human footprints embedded in an ancient lakebed show that humans inhabited North America during the Last Glacial Maximum (LGM), occupying the region…
Metabolism and total energy expenditure change throughout our lives, and now a new study documents a series of distinct, related changes in unprecedented detail. The…
An increase of dopamine in the brain’s striatum triggers auditory hallucination-like experiences in mice, revealing a possible causal role for dopamine-dependent neurological circuits in symptoms…
The COVID-19 pandemic has revealed critical knowledge gaps and assumptions concerning how respiratory viruses spread between hosts. Traditionally thought to be spread mainly through large…
From the isotopes inside a 1.7-meter-long tusk, researchers recreated the life history of one Arctic woolly mammoth that lived more than 17,000 years ago, offering…
The flickering light emitted by astrophysical accretion disks can reveal the mass of the supermassive black hole (SMBH) at their center, according to a new…
The first direct seismic observations from NASA’s InSight lander, presented in three studies in this issue, provide clues to the composition of Mars. Researchers across…
Of the nearly 100 SARS-CoV-2 vaccines currently undergoing clinical trials, only seven are delivered intranasally — despite this vaccine type’s long success in providing protection…
Genomic evidence for the Chinese mountain cat as a wildcat conspecific (Felis silvestris bieti) and its introgression to domestic cats. Analyses of genomic data suggest…
Using LIGO’s suspended mirrors, researchers have demonstrated the ability to cool a large-scale object — the 10-kilogram optomechanical oscillator the suspended mirrors form — to…
Mitochondrial DNA of archaic humans has been retrieved from cave sediments, but it has limited value for studying population relationships. Now, researchers present a method…
Nineteen million years ago, sharks nearly disappeared from Earth’s oceans, according to a new study, which provides evidence for a previously unknown mass ocean extinction…
The emergence and global spread of the highly pathogenic H5N8 avian influenza virus (AIV), a pathogen that has caused continuous and ongoing outbreaks with massive…