--- title: "Meaning & Key Takeaway of: If an alien lands on your front lawn and…" description: "\"If an alien lands on your front lawn and extends an appendage as a gesture of greeting, before you get friendly, toss it an eightball. If the appendage..." image: "https://sms4smile.com/quotes/i/25a/neil-degrasse-tyson-143_aliens_if-an-alien-lands-on-your-front-lawn-and_990404.png" --- # If an alien lands on your front lawn and extends an… ![“If an alien lands on your front lawn and extends an appendage as a gesture of greeting, before you get friendly, toss it an eightball. If the appendage explodes, then the alien was probably made of antimatter. If not, then you can proceed to take it to your leader.” quote by Neil deGrasse Tyson](https://sms4smile.com/quotes/i/25a/neil-degrasse-tyson-143_aliens_if-an-alien-lands-on-your-front-lawn-and_990404.png) [Download](https://sms4smile.com/quotes/i/25a/neil-degrasse-tyson-143_aliens_if-an-alien-lands-on-your-front-lawn-and_990404.png) [Open image](https://sms4smile.com/quotes/i/25a/neil-degrasse-tyson-143_aliens_if-an-alien-lands-on-your-front-lawn-and_990404.png) > “If an alien lands on your front lawn and extends an appendage as a gesture of greeting, before you get friendly, toss it an eightball. If the appendage explodes, then the alien was probably made of antimatter. If not, then you can proceed to take it to your leader.” [Neil deGrasse Tyson](https://sms4smile.com/quotes/author/neil-degrasse-tyson/) ## About This Quote This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation. When encountering the unknown, use humor and caution before trusting it. **In simple terms:** Be playful yet careful with strangers. Key Takeaway Test boundaries before full engagement. Themes curiosity humor caution Mood witty thoughtful Type philosophical inspirational When to use this quote - first alien encounter - meeting new people - testing trust Key Concepts first contact risk assessment social interaction Questions to Reflect On - What would you do if the gesture turned hostile? - How can humor defuse tension? A Different Perspective Humor may not protect against real danger. ★ ★ ★ ★ ★ No ratings yet [Alien Probably](https://sms4smile.com/quotes/about/alien-probably-2023958/) [Aliens](https://sms4smile.com/quotes/about/aliens/) [Antimatter](https://sms4smile.com/quotes/about/antimatter/) [Antimatter Proceed](https://sms4smile.com/quotes/about/antimatter-proceed-2023956/) [Ass](https://sms4smile.com/quotes/about/ass/) [Bad ass](https://sms4smile.com/quotes/about/bad-ass/) [Eightball Appendage](https://sms4smile.com/quotes/about/eightball-appendage-2023957/) [Explodes Alien](https://sms4smile.com/quotes/about/explodes-alien-2023954/) [Friendly](https://sms4smile.com/quotes/about/friendly/) [Fronts](https://sms4smile.com/quotes/about/fronts/) [Gestures](https://sms4smile.com/quotes/about/gestures/) [Greetings](https://sms4smile.com/quotes/about/greetings/) [Ifs](https://sms4smile.com/quotes/about/ifs/) [Land](https://sms4smile.com/quotes/about/land/) [Lawns](https://sms4smile.com/quotes/about/lawns/) [Leader](https://sms4smile.com/quotes/about/leader/) [Made](https://sms4smile.com/quotes/about/made/) [Probably Antimatter](https://sms4smile.com/quotes/about/probably-antimatter-2023955/) [Toss](https://sms4smile.com/quotes/about/toss/) ## Related quotes > [Opposites can attract, as in magnetism. Or explode, as in matter and antimatter.](https://sms4smile.com/quotes/peter-david/opposites-can-attract-as-in-magnetism-or-explode-as-in-matter-and/) [Peter David](https://sms4smile.com/quotes/author/peter-david/) > [“If you see an antimatter version of yourself running towards you, think twice before embracing.”](https://sms4smile.com/quotes/j-richard-gott/if-you-see-an-antimatter-version-of-yourself-running-towards-you/) [J. Richard Gott](https://sms4smile.com/quotes/author/j-richard-gott/) > [Among the questions we have in mind: dark matter, antimatter, and matter symmetry.](https://sms4smile.com/quotes/fabiola-gianotti/among-the-questions-we-have-in-mind-dark-matter-antimatter-and-matter/) [Fabiola Gianotti](https://sms4smile.com/quotes/author/fabiola-gianotti/) > [“God created… light and dark, heaven and hell— science claims the same thing as religion, that the Big Bang created everything in the universe…](https://sms4smile.com/quotes/dan-brown/god-created-light-and-dark-heaven-and-hell-science-claims-the-same/) [Dan Brown](https://sms4smile.com/quotes/author/dan-brown/) > [“bringing ex-lovers back together is like combining matter and antimatter; both are highly improbable and if ever done, deadly”](https://sms4smile.com/quotes/a-m-m-alusi/bringing-ex-lovers-back-together-is-like-combining-matter-and/) [A.M.M Alusi](https://sms4smile.com/quotes/author/a-m-m-alusi/) > [“Are you bringing antimatter to Hearth? You play with star-fire energies as casually as you put edges on furniture!”](https://sms4smile.com/quotes/larry-niven-edward-m-lerner/are-you-bringing-antimatter-to-hearth-you-play-with-star-fire/) [Larry Niven Edward M. Lerner](https://sms4smile.com/quotes/author/larry-niven-edward-m-lerner/) > [Relationships carry the whole universe within them. They can be everything, nothing, here, then gone. One moment, loving someone makes you shine; the next,…](https://sms4smile.com/quotes/judith-orloff/relationships-carry-the-whole-universe-within-them-they-can-be/) [Judith Orloff](https://sms4smile.com/quotes/author/judith-orloff/) > [“This is what you get for letting rednecks play with antimatter, boss”](https://sms4smile.com/quotes/john-ringo/this-is-what-you-get-for-letting-rednecks-play-with-antimatter-boss/) [John Ringo](https://sms4smile.com/quotes/author/john-ringo/) > [I want you," he muttered. "Get rid of him and take me. The only risk is losing someone you don't have anyway. He's not…](https://sms4smile.com/quotes/lisa-kleypas/i-want-you-he-muttered-get-rid-of-him-and-take-me-the-only-risk-is/) [Lisa Kleypas](https://sms4smile.com/quotes/author/lisa-kleypas/) > [There's no-matter in antimatter !.](https://sms4smile.com/quotes/napoleon-natorious-rabb/there-s-no-matter-in-antimatter/) [Napoleon Natorious Rabb](https://sms4smile.com/quotes/author/napoleon-natorious-rabb/) > [For every one billion particles of antimatter there were one billion and one particles of matter. And when the mutual annihilation was complete, one…](https://sms4smile.com/quotes/albert-einstein/for-every-one-billion-particles-of-antimatter-there-were-one-billion/) [Albert Einstein](https://sms4smile.com/quotes/author/albert-einstein/) > [Ideals and morality are often spoken of as virtual antimatter to the behaviors allegedly needed to maximize profits.](https://sms4smile.com/quotes/stephen-young/ideals-and-morality-are-often-spoken-of-as-virtual-antimatter-to-the/) [Stephen Young](https://sms4smile.com/quotes/author/stephen-young/) > [“Energetically speaking, antimatter is the mirror image of matter, so the two instantly cancel each other out if they come in contact. Keeping antimatter…](https://sms4smile.com/quotes/dan-brown/energetically-speaking-antimatter-is-the-mirror-image-of-matter-so/) [Dan Brown](https://sms4smile.com/quotes/author/dan-brown/) > [God created... light anddark, heaven and hell-science claims the same thing as religion, that the Big Bang createdeverything in the universe with an opposite."Including…](https://sms4smile.com/quotes/dan-brown/god-created-light-anddark-heaven-and-hell-science-claims-the-same/) [Dan Brown](https://sms4smile.com/quotes/author/dan-brown/) > [“One of the most striking properties of the visible universe is the preponderance of matter over antimatter. Although particle accelerators produce matter and antimatter…](https://sms4smile.com/quotes/john-d-barrow/one-of-the-most-striking-properties-of-the-visible-universe-is-the/) [John D. Barrow](https://sms4smile.com/quotes/author/john-d-barrow/) ## More by Neil deGrasse Tyson > [I don't want to go into space because of war. I think we would if it was triggered. If China said they want to…](https://sms4smile.com/quotes/neil-degrasse-tyson/i-don-t-want-to-go-into-space-because-of-war-i-think-we-would-if-it/) [Neil deGrasse Tyson](https://sms4smile.com/quotes/author/neil-degrasse-tyson/) > [Quantum physics fluctuates all the time. But now the fluctuations are not just particles coming into and out of existence, which happens all the…](https://sms4smile.com/quotes/neil-degrasse-tyson/quantum-physics-fluctuates-all-the-time-but-now-the-fluctuations-are/) [Neil deGrasse Tyson](https://sms4smile.com/quotes/author/neil-degrasse-tyson/) > [In the movie, the stars above the ship bear no correspondence to any constellations in a real sky. Worse yet, while the heroine bobs...…](https://sms4smile.com/quotes/neil-degrasse-tyson/in-the-movie-the-stars-above-the-ship-bear-no-correspondence-to-any/) [Neil deGrasse Tyson](https://sms4smile.com/quotes/author/neil-degrasse-tyson/) > [The Pacific is the best toilet for satellites.](https://sms4smile.com/quotes/neil-degrasse-tyson/the-pacific-is-the-best-toilet-for-satellites/) [Neil deGrasse Tyson](https://sms4smile.com/quotes/author/neil-degrasse-tyson/) > [... informed ignorance provides the natural state of mind for research scientists at the ever-shifting frontiers of knowledge. People who believe themselves ignorant of…](https://sms4smile.com/quotes/neil-degrasse-tyson/informed-ignorance-provides-the-natural-state-of-mind-for-research/) [Neil deGrasse Tyson](https://sms4smile.com/quotes/author/neil-degrasse-tyson/) > [If you seek only easy problems to solve, then ultimately, there'll be nothing about you to distinguish yourself from others.](https://sms4smile.com/quotes/neil-degrasse-tyson/if-you-seek-only-easy-problems-to-solve-then-ultimately-there-ll-be/) [Neil deGrasse Tyson](https://sms4smile.com/quotes/author/neil-degrasse-tyson/) > [The caricature of science is that we hold tight to the theories we have, and shun challenges to them. That's just not true. In…](https://sms4smile.com/quotes/neil-degrasse-tyson/the-caricature-of-science-is-that-we-hold-tight-to-the-theories-we/) [Neil deGrasse Tyson](https://sms4smile.com/quotes/author/neil-degrasse-tyson/) > [New generations of humans inherit the acquired discoveries of generations past, allowing cosmic insight to accumulate without limit. Each discovery of science therefore adds…](https://sms4smile.com/quotes/neil-degrasse-tyson/new-generations-of-humans-inherit-the-acquired-discoveries-of/) [Neil deGrasse Tyson](https://sms4smile.com/quotes/author/neil-degrasse-tyson/) > [I've said multiple times that the world's first trillionaire is going to be the person who exploits the resources of asteroids, the natural resources…](https://sms4smile.com/quotes/neil-degrasse-tyson/i-ve-said-multiple-times-that-the-world-s-first-trillionaire-is-going/) [Neil deGrasse Tyson](https://sms4smile.com/quotes/author/neil-degrasse-tyson/) > [ They \[scientists of centuries past\] call on God only from the lonely and precarious edge of incomprehension. Where they feel certain about their explanations,… ](https://sms4smile.com/quotes/neil-degrasse-tyson/they-scientists-of-centuries-past-call-on-god-only-from-the-lonely/) [Neil deGrasse Tyson](https://sms4smile.com/quotes/author/neil-degrasse-tyson/) > [We explore our environment, more than we are compelled to utter poetry, when we're toddlers. We start doing that later. Before that happens, every…](https://sms4smile.com/quotes/neil-degrasse-tyson/we-explore-our-environment-more-than-we-are-compelled-to-utter-poetry/) [Neil deGrasse Tyson](https://sms4smile.com/quotes/author/neil-degrasse-tyson/) > [You can't have people making decisions about the future of the world who are scientifically illiterate. That's a recipe for disaster. And I don't…](https://sms4smile.com/quotes/neil-degrasse-tyson/you-can-t-have-people-making-decisions-about-the-future-of-the-world/) [Neil deGrasse Tyson](https://sms4smile.com/quotes/author/neil-degrasse-tyson/) > [Science surrounds you. It's not something that you can step aside, step over or push out of your way because you were never good…](https://sms4smile.com/quotes/neil-degrasse-tyson/science-surrounds-you-it-s-not-something-that-you-can-step-aside-step/) [Neil deGrasse Tyson](https://sms4smile.com/quotes/author/neil-degrasse-tyson/) > [The idea that God resides in the unknown is what philosophers call the God of the gaps. And we have this thing called science,…](https://sms4smile.com/quotes/neil-degrasse-tyson/the-idea-that-god-resides-in-the-unknown-is-what-philosophers-call/) [Neil deGrasse Tyson](https://sms4smile.com/quotes/author/neil-degrasse-tyson/) > [Everybody's got money for vacation time. Look at how much we all spend just to get - well, I get sick on the loop-the-loop…](https://sms4smile.com/quotes/neil-degrasse-tyson/everybody-s-got-money-for-vacation-time-look-at-how-much-we-all-spend/) [Neil deGrasse Tyson](https://sms4smile.com/quotes/author/neil-degrasse-tyson/) [Explore all 1,143 Neil deGrasse Tyson quotes ](https://sms4smile.com/quotes/author/neil-degrasse-tyson/) ## More Aliens quotes > [My days – the blossom of my youth and the flower of my manhood – have been darkened by the dreariness of servitude. In…](https://sms4smile.com/quotes/daniel-o-connell/my-days-the-blossom-of-my-youth-and-the-flower-of-my-manhood-have/) [Daniel O'Connell](https://sms4smile.com/quotes/author/daniel-o-connell/) > [Ay-firmative,' Eve said, and tried for a smile. 'Sorry. An Aliens reference always makes me feel better at times like this. Exept I'm not…](https://sms4smile.com/quotes/rachel-caine/ay-firmative-eve-said-and-tried-for-a-smile-sorry-an-aliens-reference/) [Rachel Caine](https://sms4smile.com/quotes/author/rachel-caine/) > [You gonna take the case?" It's not a case. It's a missing person. Sort of." You're gonna have a devil of a time finding…](https://sms4smile.com/quotes/janet-evanovich/you-gonna-take-the-case-it-s-not-a-case-it-s-a-missing-person-sort-of/) [Janet Evanovich](https://sms4smile.com/quotes/author/janet-evanovich/) > [Ancient eyes had stared at me, filled with ancient grief. And something more. Something so alien and unexpected that I'd almost burst into tears.…](https://sms4smile.com/quotes/karen-marie-moning/ancient-eyes-had-stared-at-me-filled-with-ancient-grief-and-something/) [Karen Marie Moning](https://sms4smile.com/quotes/author/karen-marie-moning/) > [Joel Lane documents a life we don’t quite live, in a city we can’t quite find: half glimpsed and half imagined, we know it’s…](https://sms4smile.com/quotes/chaz-brenchley/joel-lane-documents-a-life-we-don-t-quite-live-in-a-city-we-can-t/) [Chaz Brenchley](https://sms4smile.com/quotes/author/chaz-brenchley/) > [Emma was a shocking driver, simultaneously sloppy and petrified, and for the first fifty miles had been absent-mindedly driving with her spectacles on top…](https://sms4smile.com/quotes/david-nicholls/emma-was-a-shocking-driver-simultaneously-sloppy-and-petrified-and/) [David Nicholls](https://sms4smile.com/quotes/author/david-nicholls/) > [Humans suffer from self-centred notions as to the nature of life. Humans assume that alien life forms should conform to standards that match our…](https://sms4smile.com/quotes/steve-perry/humans-suffer-from-self-centred-notions-as-to-the-nature-of-life/) [Steve Perry](https://sms4smile.com/quotes/author/steve-perry/) > [If you're going to immerse yourself in a project for three years, why not stake out a chunk of the world that is completely…](https://sms4smile.com/quotes/richard-powers/if-you-re-going-to-immerse-yourself-in-a-project-for-three-years-why/) [Richard Powers](https://sms4smile.com/quotes/author/richard-powers/) > [I'm not a fan of any genre but am a fan of movies that are intelligent and/or funny. That goes across all genres: a…](https://sms4smile.com/quotes/anonymous/i-m-not-a-fan-of-any-genre-but-am-a-fan-of-movies-that-are/) [Anonymous](https://sms4smile.com/quotes/author/anonymous/) > [The respect for human rights, essential if we are to use technology wisely, is not something alien that must be grafted onto science. On…](https://sms4smile.com/quotes/john-charles-polanyi/the-respect-for-human-rights-essential-if-we-are-to-use-technology/) [John Charles Polanyi](https://sms4smile.com/quotes/author/john-charles-polanyi/) > [“Intellectualism is a poor master over passion”](https://sms4smile.com/quotes/twe-stephens/intellectualism-is-a-poor-master-over-passion/) [Twe Stephens](https://sms4smile.com/quotes/author/twe-stephens/) > [Robin Williams was an airman, a doctor, a genie, a nanny, a president, a professor, a bangarang Peter Pan, and everything in between. But…](https://sms4smile.com/quotes/barack-obama/robin-williams-was-an-airman-a-doctor-a-genie-a-nanny-a-president-a/) [Barack Obama](https://sms4smile.com/quotes/author/barack-obama/) > [Evangelicals are distraught over the state of America because they have not been taught that we're aliens here.](https://sms4smile.com/quotes/john-piper/evangelicals-are-distraught-over-the-state-of-america-because-they/) [John Piper](https://sms4smile.com/quotes/author/john-piper/) > [Even the Supreme Court, back when it used to makes sense, the Supreme Court has never ruled that a baby born to illegal aliens…](https://sms4smile.com/quotes/rush-limbaugh/even-the-supreme-court-back-when-it-used-to-makes-sense-the-supreme/) [Rush Limbaugh](https://sms4smile.com/quotes/author/rush-limbaugh/) > [Some pundits have proposed that the aliens have come here to breed with us. Apparently, too much bike riding or something similar has rendered…](https://sms4smile.com/quotes/seth-shostak/some-pundits-have-proposed-that-the-aliens-have-come-here-to-breed/) [Seth Shostak](https://sms4smile.com/quotes/author/seth-shostak/) [Browse all 1,329 Aliens quotes ](https://sms4smile.com/quotes/about/aliens/) ```json { "@context": "https://schema.org", "@graph": [ { "@type": "Quotation", "text": "If an alien lands on your front lawn and extends an appendage as a gesture of greeting, before you get friendly, toss it an eightball. If the appendage explodes, then the alien was probably made of antimatter. 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