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Erik Klemetti

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Rocky Planet

Christmas Day Mystery Volcano Photo

ends beginnings of earth asteroid impact

Asteroid strikes, supernovae blasts and other calamities could take out humanity. But no matter what, a cataclysmic event 1 billion years from now will rob the planet of oxygen, wiping out life.

How Will Life on Earth End?

The mysterious object ‘Oumuamua passed through our solar system in 2017. Loeb has suggested it could have been sent by extraterrestrials.
(Credit: European Southern Observatory/Kornmesser)  

life in space

Some astronomers hypothesize that asteroids and comes might shuttle biological matter between planets.

Did Life on Earth Come From Outer Space?

matthew feeney unsplash

Many libraries are helping people get involved in scientific research that addresses local concerns and informs decision-making.

Libraries are Quickly Becoming Community Hubs for Citizen Science 

In this photograph captured by an astronaut aboard the International Space Station on July 31, 2011, the oblique angle reveals the layers of Earth's atmosphere, along with a thin crescent Moon illuminated by the Sun sitting below the horizon. (Credit: NASA Earth Observatory)

Earth Atmosphere - NASA

Earth ends and outer space starts at the Kármán line, some 62 miles (100 kilometers) above the planet’s surface.

The Kármán Line: Where Does Space Begin?

On May 5, 1961, Alan Shepard (left) carried out the first American spaceflight, climbing some 116 miles (188 km) above Earth's surface with the help of a V-2-inspired Redstone rocket (right).  
(Credit: NASA)

AlanShepardFreedom7

The story of how America safely sent its first man into space, causing an anxious nation to collectively exhale a sigh of relief.

60 Years Ago, Alan Shepard Became the First American in Space

Schrodinger's cat - dead and alive - shutterstock 227038018 (1)

Why Schrödinger (figuratively speaking) put his cat in the box — and why it may never get out.

Christmas Day Mystery Volcano Photo

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