What is Your Relevance to the Cosmos?
Neil deGrasse Tyson was born and raised in New York City where he was educated in the public schools clear through his graduation from the Bronx High School of Science. Tyson went on to earn his BA in Physics from Harvard and his PhD in Astrophysics from Columbia. He is the first occupant of the Frederick P. Rose Directorship of the Hayden Planetarium. His professional research interests are broad, but include star formation, exploding stars, dwarf galaxies, and the structure of our Milky Way. Tyson obtains his data from the Hubble Space Telescope, as well as from telescopes in California, New Mexico, Arizona, and in the Andes Mountains of Chile.Tyson is the recipient of nine honorary doctorates and the NASA Distinguished Public Service Medal. His contributions to the public appreciation of the cosmos have been recognized by the International Astronomical Union in their official naming of asteroid "13123 Tyson".
Tyson's new book is Astrophysics for People in a Hurry (2017).
Neil deGrasse Tyson: There’s something about the cosmic perspective which for some people is enlightening and for other people it’s terrifying. For those who are terrified by it, they’re here on earth and they have a certain self-identity, and then they learn that earth is tiny and we're in this void of interplanetary space and then there's a star that we call the sun and that’s kind of average and there’s a hundred billion other stars in a galaxy. And our galaxy, the Milky Way, is one of 50 or 100 billion other galaxies in the universe. And with every step, every window that modern astrophysics has opened to our mind, the person who wants to feel like they’re the center of everything ends up shrinking. And for some people they might even find it depressing. I assert that if you were depressed after learning and being exposed to the perspective, you started your day with an unjustifiably large ego.
You thought more highly of yourself than in fact the circumstances deserved.
So here’s what you do: You say, I have no ego at all. Let’s start that way. I have no ego, no cause to puff myself up. Now let's learn about the cosmic perspective. Yeah, we're on a planet that's orbiting a star, and a star is an energy source and it’s giving us energy, and we’re feeling this energy, and life is enabled by this energy in this star. And by the way, there’s a hundred billion other stars that have other planets. There might be other life out there, could be like us. It’s probably not like us, but whatever it is, it’d be fascinating to find out who it is.
Can we talk to them? Can we not? Are they more advanced? Are they less advanced? By the way, the atoms of our body are traceable to what stars do.
And all you can do is sit back and bask in your relevance to the cosmos.
So those who see the cosmic perspective as a depressing outlook, they really need to reassess how they think about the world. Because when I look up in the universe I know I’m small but I’m also big. I’m big because I’m connected to the universe and the universe is connected to me.
Directed / Produced by
Jonathan Fowler & Elizabeth Rodd
I assert that if you were depressed after learning and being exposed to the cosmic perspective, you started your day with an unjustifiably large ego.
Explore how alcohol affects your brain, from the first sip at the bar to life-long drinking habits.
- Alcohol is the world's most popular drug and has been a part of human culture for at least 9,000 years.
- Alcohol's effects on the brain range from temporarily limiting mental activity to sustained brain damage, depending on levels consumed and frequency of use.
- Understanding how alcohol affects your brain can help you determine what drinking habits are best for you.
If you want to know what makes a Canadian lynx a Canadian lynx a team of DNA sequencers has figured that out.
- A team at UMass Amherst recently sequenced the genome of the Canadian lynx.
- It's part of a project intending to sequence the genome of every vertebrate in the world.
- Conservationists interested in the Canadian lynx have a new tool to work with.
If you want to know what makes a Canadian lynx a Canadian lynx, I can now—as of this month—point you directly to the DNA of a Canadian lynx, and say, "That's what makes a lynx a lynx." The genome was sequenced by a team at UMass Amherst, and it's one of 15 animals whose genomes have been sequenced by the Vertebrate Genomes Project, whose stated goal is to sequence the genome of all 66,000 vertebrate species in the world.
Sequencing the genome of a particular species of an animal is important in terms of preserving genetic diversity. Future generations don't necessarily have to worry about our memory of the Canadian Lynx warping the way hearsay warped perception a long time ago.
Artwork: Guillaume le Clerc / Wikimedia Commons
13th-century fantastical depiction of an elephant.
It is easy to see how one can look at 66,000 genomic sequences stored away as being the analogous equivalent of the Svalbard Global Seed Vault. It is a potential tool for future conservationists.
But what are the practicalities of sequencing the genome of a lynx beyond engaging with broad bioethical questions? As the animal's habitat shrinks and Earth warms, the Canadian lynx is demonstrating less genetic diversity. Cross-breeding with bobcats in some portions of the lynx's habitat also represents a challenge to the lynx's genetic makeup. The two themselves are also linked: warming climates could drive Canadian lynxes to cross-breed with bobcats.
John Organ, chief of the U.S. Geological Survey's Cooperative Fish and Wildlife units, said to MassLive that the results of the sequencing "can help us look at land conservation strategies to help maintain lynx on the landscape."
What does DNA have to do with land conservation strategies? Consider the fact that the food found in a landscape, the toxins found in a landscape, or the exposure to drugs can have an impact on genetic activity. That potential change can be transmitted down the generative line. If you know exactly how a lynx's DNA is impacted by something, then the environment they occupy can be fine-tuned to meet the needs of the lynx and any other creature that happens to inhabit that particular portion of the earth.
Given that the Trump administration is considering withdrawing protection for the Canadian lynx, a move that caught scientists by surprise, it is worth having as much information on hand as possible for those who have an interest in preserving the health of this creature—all the way down to the building blocks of a lynx's life.
The exploding popularity of the keto diet puts a less used veggie into the spotlight.
- The cauliflower is a vegetable of choice if you're on the keto diet.
- The plant is low in carbs and can replace potatoes, rice and pasta.
- It can be eaten both raw and cooked for different benefits.
SMARTER FASTER trademarks owned by The Big Think, Inc. All rights reserved.