Science Alert
Catch up on the latest science news, from space and technology to life and environmental research- all the discoveries shaping our world today.
Updated: 6 min 18 sec ago
Earth's core holds most of its gold, with some material leaking into the mantle
A groundbreaking study reveals that Hawaiian volcanic rocks contain core material, lending weight to a previously held theory about Earth's structure. This finding indicates that the core engages in more exchange with the mantle than previously thought, particularly evidenced by ruthenium isotopes. The research highlights the substantial flow of mantle material from the core-mantle boundary to the surface, fundamentally enhancing our grasp of the Earth's deep interior dynamics.
America turns decades-old radioactive waste into strontium-90 power systems
The United States is developing a revolutionary nuclear-powered network deep beneath the ocean, capable of recharging drone submarines for almost thirty years without the need for resupply. This groundbreaking defense initiative utilizes strontium-90, a radioactive by-product, as its energy source. Led by Zeno Power, this project not only enhances national security but also opens doors for future scientific explorations.
Wyoming buried 1,124 wind turbine blades; Missouri plant turns old blades into cement feedstock
Repurposing decommissioned wind turbine blades is becoming a promising trend, moving away from traditional landfill disposal. These large fiberglass structures are now being shredded and incorporated into cement production. Furthermore, innovative designs have led to the transformation of some blades into pedestrian bridges. While these initiatives are commendable, they signal just the beginning.
In 2022, NASA hit an asteroid at 14,000 mph and changed its orbit by 32 minutes
Nasa's DART mission achieved a remarkable feat by changing the orbital path of an asteroid. The spacecraft made a high-speed impact on Dimorphos, a small moonlet, resulting in a 32-minute reduction of its orbit, surpassing initial objectives. This success underscores humanity's growing potential in planetary defense. Upcoming missions aim to delve deeper into the impact's implications and the characteristics of asteroids.
Gujarat canal-top solar generates power while saving 2.38M gallons of water
In Gujarat, India, a groundbreaking solar plant is ingeniously situated over an irrigation canal, generating electricity while simultaneously conserving water. By minimizing evaporation and discouraging algae growth, this project exemplifies the efficient use of existing infrastructure for multiple benefits. Given Gujarat's vast canal system, this innovative model showcases a promising solution to tackle land scarcity while enhancing water management.
Mercury is still shrinking as its cooling core cracks the planet's thin crust
Mercury's massive metallic core leads to a contraction of its rocky exterior, resulting in numerous fractures and cliffs spanning hundreds of kilometers. Recent studies have uncovered fault scarps that suggest active tectonic processes are still at play on the planet. Researchers examine these formations to gain insight into Mercury's internal mechanics, with future missions expected to deliver clearer images of these relatively young tectonic anomalies.
