Are we alone in the universe? So far, the only life we know of is right here on Earth. But here at NASA, we’re looking.
We’re exploring the solar system and beyond to help us answer fundamental questions about life beyond our home planet. From studying the habitability of Mars, probing promising “oceans worlds,” such as Titan and Europa, to identifying Earth-size planets around distant stars, our science missions are working together with a goal to find unmistakable signs of life beyond Earth (a field of science called astrobiology).
Dive into the past, present, and future of our search for life in the universe.
Mission Name: The Viking Project
Launch: Viking 1 on August 20, 1975 & Viking 2 on September 9, 1975
Status: Past
Role in the search for life: The Viking Project was our first attempt to search for life on another planet. The mission’s biology experiments revealed unexpected chemical activity in the Martian soil, but provided no clear evidence for the presence of living microorganisms near the landing sites.
Mission Name: Galileo
Launch: October 18, 1989
Status: Past
Role in the search for life: Galileo orbited Jupiter for almost eight years, and made close passes by all its major moons. The spacecraft returned data that continues to shape astrobiology science –– particularly the discovery that Jupiter’s icy moon Europa has evidence of a subsurface ocean with more water than the total amount of liquid water found on Earth.
Mission Name: Kepler and K2
Launch: March 7, 2009
Status: Past
Role in the search for life: Our first planet-hunting mission, the Kepler Space Telescope, paved the way for our search for life in the solar system and beyond. Kepler left a legacy of more than 2,600 exoplanet discoveries, many of which could be promising places for life.
Mission Name: Perseverance Mars Rover
Launch: July 30, 2020
Status: Present
Role in the search for life: Our newest robot astrobiologist is kicking off a new era of exploration on the Red Planet. The rover will search for signs of ancient microbial life, advancing the agency’s quest to explore the past habitability of Mars.
Mission Name: James Webb Space Telescope
Launch: 2021
Status: Future
Role in the search for life: Webb will be the premier space-based observatory of the next decade. Webb observations will be used to study every phase in the history of the universe, including planets and moons in our solar system, and the formation of distant solar systems potentially capable of supporting life on Earth-like exoplanets.
Mission Name: Europa Clipper
Launch: Targeting 2024
Status: Future
Role in the search for life: Europa Clipper will investigate whether Jupiter’s icy moon Europa, with its subsurface ocean, has the capability to support life. Understanding Europa’s habitability will help scientists better understand how life developed on Earth and the potential for finding life beyond our planet.
Mission Name: Dragonfly
Launch: 2027
Status: Future
Role in the search for life: Dragonfly will deliver a rotorcraft to visit Saturn’s largest and richly organic moon, Titan. This revolutionary mission will explore diverse locations to look for prebiotic chemical processes common on both Titan and Earth.
For more on NASA’s search for life, follow NASA Astrobiology on Twitter, on Facebook, or on the web.
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NGC 6888, también conocida como la Nebulosa Creciente, es una burbuja cósmica de unos 25 años luz de diámetro, arrastrada por los vientos de su estrella central, brillante y masiva. La estrella central de NGC 6888 está clasificada como una estrella Wolf-Rayet (WR 136). La estrella se desprende de su envoltura exterior con un fuerte viento estelar., expulsando el equivalente a la masa del Sol cada 10.000 años.
Créditos: Michael Miller , Jimmy Walker
Después de llegar al cráter Jezero en Marte, Perseverance dio una vuelta el 4 de marzo. Esta imagen afilada de la Navcam del rover del coche muestra las pistas dejadas por sus ruedas en el suelo.
En preparación para las operaciones en la superficie del planeta rojo, su primer viaje duró unos 33 minutos. En una corta y exitosa prueba de conducir Perseverance avanzó 4 metros, dio un giro de 150 grados, respaldado por 2.5 metros, y ahora ocupa una plaza de estacionamiento diferente en su recién bautizada Octavia E. Butler, lugar de aterrizaje. Aunque la distancia total de viaje de la primera salida del rover fue de unos 6.5 metros (21 pies), se pueden esperar viajes regulares de 200 metros o más en el futuro.
Crédito: NASA, JPL-Caltech, Mars 2020
Salar de Uyuni, Bolivia🇧🇴
Crédito: 不動明王
Are we alone? How did we get here? Where are we headed?
At NASA, our mission is to explore. We visit destinations in our solar system and study worlds beyond to better understand these big questions.
We also dream. We dream of traveling to distant worlds, and what that might be like. In the video above you can see fanciful, imagined adventures to real places we’ve studied at NASA.
Check out how we created these otherworldly scenes in the video below. A NASA videographer used green screens to add motion and real people to bring life to our series of solar system and exoplanet travel posters.
Let’s dive into one example from the video. The shot of kayaking on Titan showcases the real rivers and lakes of liquid methane and ethane that slosh and flow on Saturn's largest moon. Titan's mysterious surface was revealed by our Cassini spacecraft, which also deployed the European Space Agency’s Huygens probe to the surface. The atmosphere on Titan is so thick, and the gravity so light, that with each strike of a paddle, you might be lofted above the swift current as you ride the tides through a narrow strait called the Throat of Kraken. NASA scientist Mike Malaska studies Titan and collaborated on the poster featured in the video. His research informed the artwork, and so did a hobby: kayaking. Those ultra-cold chemical seas might be even more of a challenge than shown here. Your boat might crack, or even dissolve, Malaska said.
We’ll learn more about Titan when our Dragonfly mission of dual quadcoptors — rotorcraft with eight blades each — visits the icy moon in 2034.
Our understanding of other worlds is always evolving, and sometimes we learn new details after we illustrate our science. In one of our travel posters, we show a traveler standing on the surface of exoplanet Kepler-16b with two shadows formed by the planet’s two suns. The planet does indeed orbit two stars, but with later size and mass refinements, we now think it would be hard to stand there and enjoy a binary sunset. There isn't a solid surface to stand on a gas planet, and that's what Kepler-16b now appears to be!
In addition to sharing how sublime science can be, these scenes are a reminder that there are lots of careers in the space program, not just scientist, engineer, or astronaut. A creative team at NASA’s Jet Propulsion Laboratory in Southern California produced the travel posters, originally to help share the work of NASA's Exoplanet Exploration Program. They are the result of lots of brainstorming and discussion with real NASA scientists, engineers, and expert communicators. The video versions of these spacey travel scenes were produced by visualization experts at NASA’s Goddard Space Flight Center in Greenbelt, Maryland.
All of this work is meant to inspire, and to explore the edge of possibility. It’s also an invitation. With science, we’re stepping into the future. Join us?
Encontrar ruinas y obtener fotografías junto a las estrellas es algo fantástico. Villacreces, Castilla y León, España. Villacreces fue el primer despoblado del siglo XX en Tierra de Campos.
La estructura que podemos ver en el centro es la Torre mudéjar.
Crédito: Marcos Alonso
https://instagram.com/elpiratilla
~Antares
Con pinceladas cósmicas de gas hidrógeno brillante , este hermoso paisaje celeste se despliega a través del plano de nuestra Vía Láctea y el centro de la constelación norteña Cygnus el Cisne. A la izquierda de Gamma Cygni , con la forma de dos alas luminosas divididas por un largo camino de polvo oscuro está IC 1318, cuyo nombre popular es comprensiblemente la Nebulosa de la Mariposa.
Créditos: Paul C. Swift
Vía Láctea en Embalse de Barrios de Luna situado en la comarca leonesa de Luna en España.
📅 19 de Julio del 2020.
Crédito: Marcos Alonso
https://instagram.com/elpiratilla
~Antares
¿Qué está pasando en la nebulosa de la Estatua de la Libertad?
Se están formando y liberando estrellas brillantes y moléculas interesantes. La compleja nebulosa reside en la región de formación estelar llamada RCW 57. Se cree que los PAH se crean en el gas de enfriamiento de las regiones de formación de estrellas, y su desarrollo en la nebulosa de formación del Sol hace cinco mil millones de años puede haber sido un paso importante en el desarrollo de la vida en la Tierra. La imagen presentada fue tomada en el Observatorio Interamericano Cerro Tololo en Chile.
Créditos: S. Mazlin , J. Harvey , R. Gilbert y D. Verschatse
-Betelgeuse
Vía Láctea sobre Payson, Arizona. Una ciudad al norte del condado de Gila.
Crédito: Evan Amos
https://instagram.com/evanamos
~Antares
Glaretum fundado en el 2015 con el objetivo de divulgar la ciencia a través de la Astronomía hasta convertirnos en una fuente de conocimiento científico veraz siendo garantía de información seria y actualizada.
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