In humans, repeated encounters with a wide variety of stimuli can reactivate specific neurons to produce long-term memories. In new research, biologists...
Archaeologists have found four 1,900-year-old swords in a small cave located in an area of isolated and inaccessible cliffs north of the archaeological...
Ferroptosis, which is caused by a buildup of iron in cells, appears to be a major mechanism of white matter injury in Alzheimer’s disease and vascular...
The detection of the cosmogenic isotope aluminum-26; the concentrations of nickel, cobalt, germanium and gallium; and the presence of two minerals called...
Harvard University’s Professor Avi Loeb and colleagues have discovered at least 50 tiny spherical iron fragments near the fireball path of the first...
Since the discovery of X-rays by Wilhelm Röntgen in 1895, its use has been ubiquitous, from medical and environmental applications to materials sciences....
Precursors of the molecules needed for the origin of life may have been generated by chemical reactions promoted by meteoritic and volcanic particles approximately...
The ancient crater, formally known as ‘le Clot,’ is about 220 m in diameter and 30 m in depth, and is located in the ground of the Domaine du Meteore-vineyard...
Researchers from the Shenzhen Campus of Sun Yat-sen University, Carnegie Mellon University, the Chinese University of Hong Kong and Zhejiang University...
Astronomers using the NASA/ESA/CSA James Webb Space Telescope have detected water ice as well as frozen forms of carbonyl sulfide, ammonia, methane, and...
The very first stars likely formed when the Universe was only 100 million years old. Known as Population III stars, these stellar objects were so massive...
Carbon plays a vital role in geological processes occurring in the Earth’s interior. While most carbon on our planet exists in its core, whether or not...
In 2017, paleontologists found 3.75- to 4.28-billion-year-old microscopic filaments and tubes, which appeared to have been made by iron-loving bacteria,...
Using data collected by the Wide Field Camera 3 (WFC3) infrared spectrograph onboard the NASA/ESA Hubble Space Telescope, astronomers have obtained a detailed...
Observations of an asteroid group indicate that they may have metal-rich surfaces, but those asteroids with measured densities are about half as dense...
The temperature of a planet’s atmosphere decreases with increasing altitude, unless a shortwave absorber that causes a temperature inversion exists....
The pressure and temperature conditions at which iron melts are important for rocky planets because they determine the size of the liquid metal core, an...
Ultra-low velocity zones sit beneath the central Pacific and Africa, atop the outer core of Earth. In these areas, seismic waves slow by as much as half,...
An analysis of the Hayabusa-2 sample of material returned to Earth from the carbon-rich, diamond-shaped, near-Earth asteroid Ryugu shows that the material...
Astronomers using NASA’s Transiting Exoplanet Survey Satellite (TESS) have identified a dense, ultra-short-period sub-Earth planet transiting the bright,...
