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More in Earth & Space
How Big Is 16 Psyche? Size, Mass, and Composition
Explore 16 Psyche’s unusual size, mass, and metallic composition. Learn why NASA is studying this potential exposed planetary core.
What Is the Longest Lasting Tornado on Record?
Most tornadoes vanish quickly. Learn the science that allows rare, powerful storms to maintain rotation across hundreds of miles.
What Is a Dike in Water Management?
Understand the engineering, function, and ongoing risk management of dikes and levees used for flood protection and land reclamation.
What Is Discharge in the Water Cycle?
Learn how hydrologic discharge quantifies the movement of water, determines resource availability, and enables flood control planning.
How Is the Movement of Tectonic Plates Measured?
Tracking tectonic plates requires combining ultra-precise global reference systems with evidence from deep geological history.
What Is a River Confluence and How Does It Work?
Discover the science behind river confluences. Explore the physical mixing of flows, ecological hotspots, and their role in shaping civilization.
What Is the Average Size of an Island?
Calculate the true size of a typical island. Learn why statistical extremes and boundary definitions make the mathematical average useless.
How Does a Strawberry Moon Happen?
Uncover the real science behind the Strawberry Moon, separating the astronomical facts from the harvest-based name and common color myths.
When Was Olympus Mons Discovered on Mars?
The true story of Olympus Mons’ discovery: the difference between sighting a feature through a telescope and scientifically confirming a planetary giant.
What Is It About the Sun’s Corona That Astronomers Don’t Understand?
Unravel the two great puzzles of the solar corona: the unexplained extreme heating and the mechanism that accelerates the powerful solar wind.
Which Sphere Protects Earth’s Surface?
Discover which sphere protects Earth’s surface. Learn how atmospheric layers block UV and debris, while the magnetosphere repels solar wind.
Why Does It Not Get Dark in Alaska?
Learn the science behind Alaska’s Midnight Sun: Earth’s axial tilt and how latitude dictates weeks of continuous summer daylight.
When Can You See the Northern Lights in Massachusetts?
Uncover the rare solar intensity levels, optimal viewing seasons, and low-light locations needed to see the Northern Lights in Massachusetts.
Where Is Tin Found in the World?
Learn why tin’s supply is highly concentrated and the difference between where it’s mined now versus where the largest resources remain.