Laboratory tubes with DNA samples
Biology

How Did the Human Genome Project Begin?

May 18, 2023

In 2003, the National Institutes of Health published a final draft of the human genome. It was a project that had its roots 30 years earlier with a British biologist. How did the Human Genome Project begin? […]

The tree leaves the gargoyle and sunshine on the dry land until the El Nino phenomenon.
Earth Science

What Is El Niño and Why Does It Matter?

May 11, 2023

Extreme weather events can cause effects thousands of miles away. Earthquakes that cause tsunamis have devastating consequences far from their points of origin. What does El Niño do to the Earth? […]

Mars with its two cratered moons Phobos and Deimos.
Astronomy

Are the Moons of Mars Really Asteroids?

May 5, 2023

Mars has two moons, both of which are very small—the largest is just 13 miles in diameter. For some time, scientists have debated what their origins are. Are Phobos and Deimos really asteroids? […]

Rocket soaring in the sky
Physics

How Do Rocket Engines Work?

April 28, 2023

Rockets differ fundamentally from planes and helicopters in terms of propulsion. Planes and helicopters rely on aerodynamic design for lift and the atmosphere for combustion. How do rockets fly? […]

Tropical Cyclone
Earth Science

What Is a Tropical Cyclone?

April 21, 2023

Tropical cyclones are weather events born in the tropic areas of Earth. They encompass other events like hurricanes and typhoons and constitute a major component of extreme weather. What defines a tropical cyclone? […]

Mercury pouring from a pipette onto a reflective surface
Chemistry

Why Is Mercury Dangerous to Humans?

April 13, 2023

Mercury has been used for so long its discoverers are unknown. It’s been found in Egyptian tombs as old as 1500 BCE and was once believed to have healing properties. Unfortunately, it’s also particularly toxic. […]

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