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August 25, 2013: Running Ultramarathons at 18,000 Feet, Meeting Captive Killer Whales, and More

This week, join us as we run a 137-mile race 18,000 feet above sea level, then we meet beach-dwelling wolves that fish for salmon like bears (and occasionally harass humans), and finally, we learn about the SeaWorld orca who has been connected with three human deaths to appreciate how hard the large, social mammals are to maintain in captivity.

Top 10 Headlines Today: Hole in Time Created, Tiny Ancestor Found…

The top 10 headlines on our radar today: Scientists have created a “hole in time,” a tiny fossil may be the earliest primate yet discovered, and …

It’s About Time: How Americans While Away the Hours

Have you ever wondered how your days stack up to those of the average American? Here’s your chance to find out. The Bureau of Labor Statistics has just released the American Time Use Survey, which looks at the amount of time per day people spend working, taking care of their kids, and letting off steam.

The Time is Out of Joint

It seems we are always keeping track of time, but do we really even know what it is? Recent scientific studies are calling into question Sir Isaac Newton’s theory of time, including the idea that it represents a fourth dimension.

A Brief History of Light-Years (Or Why Astronomy Is a Form of Time Travel)

Recently astronomers announced the discovery of the youngest black hole yet found, which we see as an object that’s roughly 30 years old. But the news created a bit of a stir, because the black hole lies in a galaxy that’s about 50 million light-years away. Understanding the controversy means knowing the definition of a…

Watching a Planet’s Birth in Real Time

Your friendly neighborhood geologist will tell you that the age of the Earth is 4.54 billion years, give or take 45 million. Since modern humans have been around for only about 60,000 years of that time, it’s hard for us to even guess at how exactly the planet was born. Luckily we have a variety…

Could Earth Have Two Moons?

It’s our closest neighbor in the solar system and the only one we’ve set human feet on so far. But there’s still plenty of mystery surrounding our orbital partner, the moon. —Image courtesy NASA Perhaps one of the biggest questions is why we have a lone natural satellite, and a pretty big one at that.…

Was Hubble a DeLorean in Another Life?

Sometimes it must seem like the Hubble Space Telescope is a time traveler. Within hours of Hubble making headlines because it shut itself down due to a serious mechanical failure, mission scientists released a survey of galactic diversity based on new Hubble images. NGC 253, Sculptor Group galaxy, 13 million light-years away —Image courtesy NASA,…