Introduction Earthquake faults are not random cracks in the crust; they are the expression of deep-seated mechanical processes operating under the framework of plate tectonics. The lithosphere is segmented into rigid plates that move at rates of a few centimeters per year, generating long-term stress accumulation at their boundaries and interiors. When this stress exceeds…
Introduction The Earth’s inner core is understood to be a solid sphere that is composed primarily of iron and nickel. Located about 5,150 kilometers beneath the Earth’s surface, it is characterized by extreme pressure, and temperatures exceeding 5,000 degrees Celsius. Recent scientific advancements have revealed that this inner core is a dynamic entity undergoing significant…
The Krafla Magma Testbed (KMT) Project is an ambitious program to harness the potential of the Earth’s magma for extreme-scale geothermal energy production. Launched in 2014 and located at the Krafla volcanic system in northern Iceland, KMT is the world’s first field laboratory aimed at directly studying active magma reservoirs. The goal is to advance…
The lower mantle of the Earth, beneath the Pacific and Indian Oceans, is dominated by two vast, continent-sized regions exhibiting low shear velocities and increased density. These massive blob structures, known as Large Low-shear Velocity Provinces (LLSVPs) or Superplumes, are hundreds of kilometers in height and thousands of kilometers in width. The first one (called…
The Sun’s magnetic field goes through an approximately 11-year cycle during which it completely changes its polarity (i.e., the Sun’s South and North Poles trade places.) This phenomenon, called the Solar Cycle (or Schwabe cycle), leads to significant fluctuations in the frequency and intensity of coronal mass ejections, sunspots, solar flares, etc. These disruptions are…
To understand the Hubble Tension, we must first understand the Hubble Constant. The Hubble constant (H0) is a value that measures the rate of expansion of the universe. As we know, the universe is constantly expanding. However, what it is expanding into is still an open question that, perhaps, may never be convincingly answered by…
Researchers at the University of Oxford have achieved the quantum entanglement of two strontium-based optical clocks. While previous entanglement demonstrations were limited to microscopic distances, this one appears to be the first reported case of macroscopic entanglement. Simply put, quantum entanglement is a phenomenon that enables two physically-distant entities (generally, subatomic particles) to be linked,…
In a recent Nature Neuroscience paper, scientists from Boston University postulated that a specific type of brain stimulation called Transcranial Alternating Current Stimulation (tACS) could enable a path toward achieving long-lasting memory enhancement. They proposed that brain rhythms can be neuro-moderated through repetitive tACS to improve cognitive functions (e.g., auditory–verbal memory) in older adults. The…
Renewable energy has historically been costlier than fossilized energy. This is changing now. Lazard’s latest annual report on Levelized Cost of Energy Analysis highlighted that certain renewable energy technologies are becoming cost-competitive vis-à-vis conventional energy technologies. For example, see the chart below. Source: Levelized Cost Of Energy, Levelized Cost Of Storage, and Levelized Cost Of…
Lagrange Points (or L-points) recently came into the limelight during the launch of the James Webb Space Telescope (JWST). Named after the famous mathematician Joseph-Louis Lagrange, these are special points in space where the net gravitational forces of the earth and the sun (or to generalize, those of any two bodies with large masses) are…
In the 1980s, space scientists and astronomers started talking about the existence of a new planet (called Planet X) to explain certain phenomena, such as the unexplained residuals in the orbit of Neptune. As new discoveries emerged over time, the idea gradually evolved and this hypothetical entity came to be known as Planet Nine –…
The Astronomy and Astrophysics Decadal Survey is an exhaustive report on astronomy and astrophysics that the United States’ National Academy of Sciences publishes at the end of every decade. This report explains the current state of play in astronomy and astrophysics, and recommends the research priorities of the upcoming decade to the government. The last…
It has been over ninety years since the fundamental concept of Schwarzschild Wormholes (also called Einstein–Rosen Bridges) was first proposed. Over the years, scientists have been trying to determine if wormholes are actually a physical reality, and if they do exist, whether they are traversable in nature. Two challenges exist for the traversable wormhole hypothesis:…
The speed of light is often considered to have a specific upper limit (c when light travels in a vacuum) but this limitation can be overcome under certain physical conditions. Pulses of light passing through specific materials can achieve group velocities that are higher or lower than c, depending on how the shapes of these…