One year ago today. See that dot between Saturn's rings? That's us. All of us, in Cassini's last view of Earth, a billion miles away. More about ’s Cassini mission to : saturn.jpl.nasa.gov #NASA’s #Saturn:
We love sharing space with you! Is the feeling mutual?
Cast your vote by tomorrow, April 19, for six @NASA digital efforts nominated for @TheWebbyAwards. Link in bio 👆 and here: https://go.nasa.gov/2HGFxvJ
When you really think about it the earth is a pretty big place compared to how small we are as humans. I can’t even comprehend the size of the objects in this video.
Our solar system doesn’t even compete with the size of the rest of the universe but since it is our home I will be giving 🔥25% OFF🔥 on all planet T-shirt’s ordered this week! 🌎(Use code “SOLARSYSTEM” in checkout at onelonelyspeck.com or use link in bio)🌍
🌏Reposted via @neil.degrasse
This Hubble image shows a massive galaxy cluster glowing brightly in the darkness. Despite its beauty, this cluster bears the distinctly unpoetic name of PLCK G308.3-20.2.
Galaxy clusters can contain thousands of galaxies all held together by the glue of gravity. At one point in time they were believed to be the largest structures in the universe — until they were usurped in the 1980s by the discovery of superclusters. These massive formations typically contain dozens of galaxy clusters and groups and span hundreds of millions of light-years. However, clusters do have one thing to cling on to: superclusters are not held together by gravity, so galaxy clusters still retain the title of the biggest structures in the universe bound by gravity.
One of the most interesting features of galaxy clusters is the stuff that permeates the space between the constituent galaxies: the intracluster medium (ICM). High temperatures are created in these spaces by smaller structures forming within the cluster. This results in the ICM being made up of plasma — ordinary matter in a superheated state. Most luminous matter in the cluster resides in the ICM, which is very luminous in X-rays. However, the majority of the mass in a galaxy cluster exists in the form of non-luminous dark matter. Unlike plasma, dark matter is not made from ordinary matter such as protons, neutrons and electrons. It is a hypothesized substance thought to make up 80% of the universe’s mass, yet it has never been directly observed.
For the full story, head to nasa.gov/hubble
Credit: ESA/Hubble & NASA, RELICS
We are blessed to be living on such a beautiful planet, if only we knew how to value and appreciate it. Instead we build ugly cities that contaminate and depress. That suffocate and consume. While we give away these remarkable views!!! #blessed#takemeback#throwbackthursday
O nosso ponto azul pálido, o planeta Terra, é visto neste vídeo capturado pelo astronauta da NASA Jack Fischer (@ astro2fish) do seu ponto de vista único na Estação Espacial Internacional (@iss). A partir de 250 milhas acima do nosso planeta natal, esta imagem de lapso de tempo leva-nos ao brilho da lua do Oceano Pacífico e acima das luzes nocturnas de São Francisco, CA. O tom fino da nossa atmosfera é visível em torno do nosso planeta com uma majestosa camada branca de nuvens esporadicamente vistas por baixo.
A Estação Espacial Internacional atualmente abriga seis pessoas que vivem e trabalham em microgravidade. Ao orbitar nosso planeta a 17.500 quilômetros por hora, a tripulação a bordo está conduzindo importantes pesquisas que beneficiam a vida aqui na Terra.
#REPOST @NASA #nasa#space#earth#orbit#spacestation#internationalspacestation#clouds#atmosphere#sanfrancisco#pacificocean#ocean#water#palebluedot#home#timelapse
🌍 That's here. That's home. That's us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. The aggregate of our joy and suffering, thousands of confident religions, ideologies, and economic doctrines, every hunter and forager, every hero and coward, every creator and destroyer of civilization, every king and peasant, every young couple in love, every mother and father, hopeful child, inventor and explorer, every teacher of morals, every corrupt politician, every "superstar," every "supreme leader," every saint and sinner in the history of our species lived there -- on a mote of dust suspended in a sunbeam.
The Earth is a very small stage in a vast cosmic arena. Think of the rivers of blood spilled by all those generals and emperors so that, in glory and triumph, they could become the momentary masters of a fraction of a dot. Think of the endless cruelties visited by the inhabitants of one corner of this pixel on the scarcely distinguishable inhabitants of some other corner, how frequent their misunderstandings, how eager they are to kill one another, how fervent their hatreds.
Our posturings, our imagined self-importance, the delusion that we have some privileged position in the Universe, are challenged by this point of pale light. Our planet is a lonely speck in the great enveloping cosmic dark. In our obscurity, in all this vastness, there is no hint that help will come from elsewhere to save us from ourselves.
The Earth is the only world known so far to harbor life. There is nowhere else, at least in the near future, to which our species could migrate. Visit, yes. Settle, not yet. Like it or not, for the moment the Earth is where we make our stand.
It has been said that astronomy is a humbling and character-building experience. There is perhaps no better demonstration of the folly of human conceits than this distant image of our tiny world. To me, it underscores our responsibility to deal more kindly with one another, and to preserve and cherish the pale blue dot, the only home we've ever known.
--Carl Sagan, Pale Blue Dot, 1994