How To Misuse a Warp Drive for Time Travel

In this Cosmic Query, a fan asks about the worst-case scenario for misuse of a warp drive. Sure enough, astrophysicist Neil deGrasse Tyson comes up with one involving backwards time travel that creates a timeline-destroying paradox. Then it gets really weird, when Neil and co-host Eugene Mirman talk about altering history, killing grandparents, sex and jumping out of closets. Watch for yourself.

via Star Talk Radio.
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Neil deGrasse Tyson: When I Look Up

Neil deGrasse Tyson is an astrophysicist and the Director of the Hayden Planetarium at the American Museum of Nature History.

via NOVA’s Secret Life of Scientists and Engineers.


Could Aliens Be Made of Pure Energy?

A fan asks if an alien species could exist as pure energy, and astrophysicist Neil deGrasse Tyson explores a potential drawback to energy-based life forms. Comic co-host Eugene Mirman just wants to know if you could eat them. Enjoy this StarTalk Radio “Behind the Scenes” Cosmic Queries video.

via Star Talk Radio.


Neil deGrasse Tyson on Calculating the Distance of a Quasar

If a quasar is billions of light years away, how can we calculate that distance when the light takes billions of years to reach us? Astrophysicist Neil deGrasse Tyson explains why we can see events that took place before Earth even existed in this StarTalk Radio “Behind the Scenes” Cosmic Queries video with comic co-host Eugene Mirman.

via Star Talk Radio.


Neil deGrasse Tyson’s Cosmic Smackdown - Pluto vs Kepler 37b

Why is Kepler-37b an exoplanet while Pluto has been demoted to a dwarf planet? It turns out size isn’t everything, as astrophysicist Neil deGrasse Tyson explains to co-host Eugene Mirman when he answers a fan’s Cosmic Query in this StarTalk Radio “Behind the Scenes” video.

via Star Talk Radio.


Neil deGrasse Tyson Ponders Life on a Planet with 3 Suns

What would life be like on a planet in a triple star system? Would there be a stable climate, or even a stable orbit? And what about sunsets? Find out when astrophysicist Neil deGrasse Tyson and comic co-host Eugene Mirman answer a fan’s Cosmic Query in this StarTalk Radio “Behind the Scenes” video.

via Star Talk Radio.


Neil deGrasse Tyson on Why We Shouldn’t Feel Small in the Universe

thatssoscience:

sagansense:

This week, Neil deGrasse Tyson, director of the Hayden Planetarium, talks with Bill Moyers about the return of Cosmos, the nature of the universe, and why science matters. 

Watch the first show in the multi-part series.

Source: amnhnyc

no matter how many times he says this, no matter how many different ways. It’s still one of my favorite descriptions of our place in the universe

Neil deGrasse Tyson: Is the Universe Expanding or Are We Shrinking?

A fan asks, “Is it possible that the universe isn’t expanding, but that we’re all just shrinking at a constant rate all the way to nothingness?” While comic co-host Eugene Mirman is quick to dismiss the possibility, Neil deGrasse Tyson is intrigued by this “fun idea” and needs a little more time to consider it seriously in this StarTalk Radio Cosmic Query.

via Star Talk Radio.


Neil deGrasse Tyson: Could Time Have Multiple Dimensions?

A fan asks, “Just as string theory requires more spatial dimensions than we experience, couldn’t it be possible to have more time dimensions than we experience?” Astrophysicist Neil deGrasse Tyson thinks that would be cool, and explains how multiple dimensions of time might work to comic co-host Eugene Mirman in this StarTalk Radio Cosmic Query.

via Star Talk Radio.
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Neil deGrasse Tyson on Mary Poppins, Kites and Physics

How high could a kite fly? Could it get into the stratosphere? What are the physics of kite flying? How do updraft, buoyancy, string weight, kite weight, and wind speed interact with each other? The answers are supercalifragilisticexpialidocious, as Neil also weighs in on the kite-flying scene in “Mary Poppins” — and unlike some other Disney movies when it comes to scientific accuracy, this one passes with flying colors! This Cosmic Query also features Eugene Mirman starring as the “funny person.” (For the explanation of that one, you’ll have to watch.)

via Star Talk Radio.


Neil deGrasse Tyson on Adding Oxygen to the Atmosphere

A fan wants to know what would happen if we added frozen oxygen from space to Earth’s atmosphere like in an episode of Buck Rogers in the 25th Century (“Twiki is Missing” Episode 118, 1/31/80). Once Neil deGrasse Tyson and Eugene Mirman stop laughing, Neil explains why adding oxygen would be a bad idea (imagine the Apollo 1 capsule fire on a much larger scale), why it’s not necessary but how we could easily get oxygen should we need it, and explains why the word “Spaceberg” makes as little sense as the idea the Buck Rogers writers came up with.

via Star Talk Radio.


Neil deGrasse Tyson Explains Gravitational Lensing

Can gravity bend space, creating a cosmic “magnifying lens” that could allow us to see further into the universe? Watch astrophysicist Neil deGrasse Tyson explain gravitational lensing, space telescopes & Einstein’s prediction to comic co-host Eugene Mirman in this StarTalk Radio Cosmic Query.

via Star Talk Radio.
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Neil deGrasse Tyson on Cosmic Bruises and the Multiverse

Have other universes collided with our universe, leaving cosmic “bruises” on the cosmic background radiation, and what does that imply about our expanding universe? In answering a fan’s Cosmic Query, astrophysicist Neil deGrasse Tyson and Eugene Mirman ponder the possibility of cosmic collisions and discuss the physics of the multiverse.

via Star Talk Radio.


Neil deGrasse Tyson on Finding Life on Mars and Exoplanets

Will we discover life first on Mars or on an exoplanet in the Goldilocks zone around a distant star? To answer this Cosmic Query, astrophysicist Neil deGrasse Tyson and Eugene Mirman discuss the technology required to find microbial life on Mars, which we already have, vs. the new technology we’re just developing that can help us search for biomarkers in the atmospheric chemistry of an exoplanet, including methane, which is unstable on its own and could indicate the presence of life.

via Star Talk Radio.
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