> Skip to content
  • Published: 1 September 2020
  • ISBN: 9780753553817
  • Imprint: WH Allen
  • Format: Paperback
  • Pages: 272
  • RRP: $22.99

Letters from an Astrophysicist



Now that people communicate with one another primarily by social media, letter-writing has become a lost art. The greatest casualty may be our growing inability to find words that precisely communicate our feelings and emotions. Why else the need for that burgeoning catalog of emoticons to supplement our written correspondence? A smiley face. A snarky face. A heart. A thumbs-up. But when the world stimulates your curiosity; when your state of not knowing leaves you restless; when your existential angst overflows; sometimes you just have to write a full-up letter to somebody.

Contained herein is a sampling of my correspondence, almost all with complete strangers, spanning more than two decades, with most letters selected from a ten-year period when my email address was publicly accessible.* Over that time, most inquiries contained straightforward questions of science. Those were fielded by expert staff at New York City’s Hayden Planetarium, where I serve as director. Other letters, mostly of a personal nature, including those with specific reference to a speech I had given, a book I have written, or a video in which I appeared, form the corpus of letters from which my responses are drawn.

The letters to me that communicate significant emotion, curiosity, or anxiety are reproduced in full.* Other letters, of the rambling type, I summarize for brevity in a single paragraph. Some letters are written by people who are angry with the world or with something I have said or done. Others explore ideas and beliefs. Still others are sad, sensitive, and poignant. And in many cases there’s a longing we’ve all experienced at one time or another: the search for meaning in our lives; an evergreen urge to understand one’s place in this world and in this universe.

Added, too, are letters I’ve written, not to anybody but to everybody. These include letters to the editor, mostly of the New York Times, as well as open letters posted to my Facebook page and other public places on the internet. One of the earliest dates back to my overlong September 12, 2001, letter to family and colleagues, twenty-four hours after I bore witness, from a distance of four blocks, to the attack and collapse of the World Trade Center’s Twin Towers.

Above all else, Letters from an Astrophysicist is a vignette of the wisdom I have mustered to teach, enlighten, and ultimately commiserate with the curious mind. It’s the world as viewed through the lens of an astrophysicisteducator. A world now shared with you.


* When a letter was received via means other than email (e.g., US “snail” mail or social media), that medium is indicated.

* When sensible, letters are lightly edited for spelling and grammar. Long letters are also edited for clarity and length. Meanwhile, zealous punctuation, when issued forth from EMOTION, is left largely intact!!!



A Memoir, of Sorts

Happy 60th Birthday, NASA

Monday, October 1, 2018

Facebook Note


Dear NASA, Happy birthday! Perhaps you didn’t know, but we’re the same age. In the first week of October 1958, you were born of the National Aeronautics and Space Act as a civilian space agency, while I was born of my mother in the East Bronx. So the yearlong celebration of our shared sixtieth anniversary provides me a unique occasion to reflect on our past, present and future.

I was three years old when John Glenn first orbited Earth. I was seven when you lost astronauts Grissom, Chaffee, and White in that tragic fire of their Apollo 1 capsule on the launch pad. I was ten when you landed Armstrong and Aldrin on the Moon. And I was fourteen when you stopped going to the Moon altogether. Over that time I was excited for you and for America. But the vicarious thrill of the journey, so prevalent in the hearts and minds of others, was absent from my emotions. I was obviously too young to be an astronaut. But I also knew that my skin color was much too dark for you to picture me as part of this epic adventure. Not only that, even though you are a civilian agency, your most celebrated astronauts were military pilots, at a time when war was becoming less and less popular.

During the 1960s, the Civil Rights movement was more real to me than it surely was to you. In fact it took a directive from Vice President Johnson in 1963 to force you to hire black engineers at your prestigious Marshall Space Flight Center in Huntsville, Alabama. I found the correspondence in your archives. Do you remember? James Webb, then head of NASA, wrote to German rocket pioneer Wernher von Braun, who headed the Center and who was the chief engineer of the entire manned space program. The letter boldly and bluntly directs von Braun to address the “lack of equal employment opportunity for Negroes” in the region, and to collaborate with the area colleges Alabama A&M and Tuskegee Institute to identify, train, and recruit qualified Negro engineers into the NASA Huntsville family.

In 1964, you and I had not yet turned six when I saw picketers outside the newly built apartment complex of our choice, in the Riverdale section of the Bronx. They were protesting to prevent Negro families, mine included, from moving there. I’m glad their efforts failed. These buildings were called, perhaps prophetically, the “Skyview Apartments,” on whose roof, 22 stories over the Bronx, I would later train my telescope on the universe.

My father was active in the Civil Rights movement, working under New York City’s Mayor Lindsay to create job opportunities for youth in the ghetto—as the “inner city” was called back then. Year after year, the forces operating against this effort were huge: poor schools, bad teachers, meager resources, abject racism, and assassinated leaders. So while you were celebrating your monthly advances in space exploration from Mercury to Gemini to Apollo, I was watching America do all it could to marginalize who I was and what I wanted to become in life.

I looked to you for guidance, for a vision statement that I could adopt that would fuel my ambitions. But you weren’t there for me. Of course, I shouldn’t blame you for society’s woes. Your conduct was a symptom of America’s habits not a cause. I knew this. But you should nonetheless know that among my colleagues, I am the rare few in my generation who became an astrophysicist in spite of your achievements in space rather than because of them. For my inspiration, I instead turned to libraries, remaindered books on the cosmos from bookstores, my rooftop telescope, and the Hayden Planetarium. After some fits and starts through my years in school, where my ambitions seemed at times to be the path of most resistance through an unwelcoming society, I became a professional scientist. I became an astrophysicist.

Over the decades that followed you’ve come a long way. Whoever does not yet recognize the value of this adventure to our Nation’s future, soon will, as the rest of the developed and developing world passes us by in every measure of technological and economic strength. Not only that, these days you look much more like America—from your senior-level managers to your most decorated astronauts. Congratulations. You now belong to the entire citizenry. Examples of this abound, but I especially remember when the public took ownership of the Hubble Telescope, your most beloved unmanned mission. They all spoke loudly back in 2004, ultimately reversing the threat that the Telescope might not be serviced a fourth time, extending its life for another decade. Hubble’s transcendent images of the cosmos had spoken to us all, as did the personal profiles of the Space Shuttle astronauts who deployed and serviced the telescope, and the scientists who benefited from its data stream.

Not only that, I had even joined the ranks of your most trusted, as I served dutifully on your prestigious Advisory Council. I came to recognize that when you’re at your best, nothing in this world can inspire the dreams of a Nation the way you can—dreams fueled by a pipeline of ambitious students, eager to become scientists, engineers, and technologists in the service of the greatest quest there ever was. You have come to represent a fundamental part of America’s identity, not only to itself but to the world.

So as we both turn sixty, and begin our sixty-first trip around the Sun, I want you to know that I feel your pains and share your joys. And I look forward to seeing you back on the Moon. But don’t stop there. Mars beckons, as do destinations beyond.

Birthday buddy, even if I have not always been, I am now and evermore your humble servant.

Neil deGrasse Tyson

New York City

Letters from an Astrophysicist Neil deGrasse Tyson

'The most popular scientist in the world' (Sunday Times) bares his soul and answers the biggest questions in the galaxy

Buy now
Buy now

More extracts

See all
ER Nurses

Angela Parawan was born in New York City and grew up in Virginia Beach.

The Anthropocene Reviewed

MY NOVEL TURTLES ALL THE WAY DOWN was published in October of 2017, and after spending that month on tour for the book, I came home to Indianapolis and blazed a trail between my children’s tree house and the little room where my wife and I often work

A Life on Our Planet

Pripyat in the Ukraine is a place unlike anywhere else I have been. It is a place of utter despair.

Against All Odds

The world was riveted by the news coming out of Thailand.

Primitive Technology

Primitive technology is the practice of making tools, structures, textiles, and clothing using only natural materials found in the wild.

Big Sister, Little Sister, Red Sister

The best-known modern Chinese ‘fairy tale’ is the story of three sisters from Shanghai, born in the last years of the nineteenth century.

Perfect Motion

I walk, therefore I am I rise. I rise and take my place between the earth and sky.

The Language of Kindness

I watch the mother’s face mostly, details I hadn’t noticed before: the slope of her eyebrows, the clenching of her teeth, eyes rimmed with red.

Gorgeous Girl

The Call came on a sunny afternoon in spring.

Our Vietnam Nurses

I have always had enormous respect, admiration and affection for nurses.

Down the Dirt Roads

I began my rural journey as a knotty-haired tomboy playing in the singing creeks of southern Tasmania with frogs, tadpoles, skinks, mud and rocks.

Not Your Average Nurse

A teaching hospital in London: September 1970 Big trouble awaited me on my first day on the job, but I wasn’t a bit surprised.