ENCORE “Follow the water” is the mantra of those who search for life beyond Earth. Where there’s water, there may be life. Join us on a tour of watery solar system bodies that hold promise for biology. Dig beneath the icy shell of Jupiter’s moon Europa, and plunge into the jets of Enceladus, Saturn’s satellite.
And let’s not forget the Red Planet. Mars is rusty and dusty, but it wasn’t always a world of dry dunes. Did life once thrive here? Also, the promise of life in the exotic hydrocarbon lakes of Titan.
Science-fiction author Robert J. Sawyer joins us, and relates how these exotic outposts have prompted imaginative stories of alien life.
Descripción en español
First released February 27, 2012.
ENCORE I need my space… but oh, how to get there? Whether it’s a mission to Mars or an ascent to an asteroid, we explore the hows of human spaceflight. Also, the whys, as in, why send humans to the final frontier if robots are cheaper? Neil deGrasse Tyson weighs in.
Plus, the astronaut who lived on the ocean floor training for a visit to an asteroid. Also, the 100YSS – the 100 Year Starship project – and interstellar travel.
And, as private rockets nip at NASA’s heels, meet one of the first tourists to purchase a (pricey) ticket-to-ride into space.
First released February 6, 2012.
ENCORE What’s the world made of? Here’s a concrete answer: a lot of it is built from a dense, knee-scraping substance that is the most common man-made material. But while concrete may be here to stay, plenty of new materials will come our way in the 21st century.
Discover the better, faster, stronger (okay, not faster) materials of the future, and Thomas Edison’s ill-conceived plan to turn concrete into furniture.
Plus, printing objects in 3D… the development of artificial skin… and unearthing the scientific contributions of African-American women chemists.
First released January 30, 2012
There’s no one like you. At least, not yet. But in some visions of the future, androids can do just about everything, computers will hook directly into your brain, and genetic human-hybrids with exotic traits will be walking the streets. So could humans become an endangered species?
Be prepared to meet the new-and-improved you. But how much human would actually remain in the humanoids of the future?
Plus, tips for preventing our own extinction in the face of inevitable natural catastrophes.
Shh …mummy’s the word! We don’t want to provoke the curse of King Tut. Except that there are many curses associated with this fossilized pharaoh – from evil spirits to alien malevolence. So it’s hard to know which one we’d face.
We’ll unravel secrets about the famous young pharaoh, including the bizarre events that transpired after the discovery of his tomb in the Valley of the Kings, and learn what modern imaging reveals about life 3,000 years ago.
Plus, we dispel myths about how to make a mummy, while learning the origin of that notorious mummy curse. Also, discover why superstitions have survival value.
You may be unique, but is your home planet? NASA’s Kepler spacecraft has uncovered thousands of planetary candidates, far far beyond our solar system. Some may be habitable and possibly even Earth-like. But now a failure in its steering apparatus may bring an abrupt end to this pioneering telescope’s search for new worlds.
But Kepler has a massive legacy of data still to be studied. Many new worlds will undoubtedly be found in these data. Hear why the astronomer who has discovered the greatest number of exoplanets is hopeful about the hunt for alien life, and meet the next generation of planet-hunting instruments.
Also, “Weird worlds? That was our idea!” Sci-fi writers lay claim to the first musings on exotic planetary locales. And a biographer of Magellan and Columbus describes the dangerous hunt for new worlds five centuries ago.
There are many kinds of islands. There’s your iconic sandy speck of land topped with a palm tree, but there’s also our home planet – an island in the vast seas of space. You might think of yourself as a biological island … until you tally the number of microbes living outside – and inside – your body.
We go island hopping, and consider the Scottish definition of an island – one man, one sheep – as well as the swelling threat of high water to island nations. Also, how species populate islands … and tricks for communicating with extraterrestrial islanders hanging out elsewhere in the cosmos.
First released January 9, 2012.
ENCORE It’s all about you. And you, and you, and you and you… that is, if we live in parallel universes. Imagine you doing exactly what you’re doing now, but in an infinite number of universes.
Discover the multiverse theory and why repeats aren’t limited to summer television.
Plus, the physics of riding on a light beam, and the creative analogies a New York Times science writer uses to avoid using the word “weird” to describe dark energy and other weird physics.
Also, people who concoct their own theories (some would say fringe) of the universe: is all matter made up of tiny coiled springs?
We’ve all hit the snooze button when the alarm goes off, but why do we crave sleep in the first place? We explore the evolutionary origins of sleep … the study of narcolepsy in dogs … and could novel drugs and technologies cut down on our need for those zzzzs.
Plus, ditch your dream journal: a brain scanner may let you record – and play back – your dreams.
And, branch out with the latest development in artificial light: bioluminescent trees. How gene tinkering may make your houseplants both grow and glow.
It’s a record we didn’t want to break. The carbon dioxide concentration in the atmosphere hits the 400 parts-per-million mark, a level which some scientists say is a point of no return for stopping climate change. A few days later, a leading newspaper prints an op-ed essay that claims CO2 is getting a bad rap: it’s actually good for the planet. The more the better.
Skeptic Phil Plait rebuts the CO2-is-awesome idea while a paleontologist paints a picture of what Earth was like when the notorious gas last ruled the planet. Note: humans weren’t around.
Plus, our skit says NO to O2 … and a claim that climate change skeptics have borrowed from the Creationists’ playbook in challenging the teaching of established science in schools.