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Casa con platanal y mafafas | El Mundo


Las otras calles | El Mundo

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Las otras calles | El Mundo



Semáforo



Publicado: 25 mayo de 2020 - 12:09 AM

Las otras calles

Autor: Saúl Álvarez Lara


En “la llamada realidad” es posible encontrar calles desiertas, esquinas sin tráfico, lugares sin ruido. En la virtualidad no hay de eso

Mujeres letristas del tango | El Mundo

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Mujeres letristas del tango | El Mundo



María Luisa Carnelli

Mujeres letristas del tango

Autor: Laura Cecilia Bedoya Ángel
25 mayo de 2020 - 12:08 AM


Las nuevas letristas tampoco van a tener un número infinito de tangos con quejas hablando de quienes alguna vez por el abandono quedaron “rechiflaos en su tristeza”.

El otro y el yo en la virtualidad | El Mundo

Leer, en Ficción la Revista 8 | El Mundo

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Leer, en Ficción la Revista 8 | El Mundo



Montaje-Escultura

Leer, en Ficción la Revista 8

Autor: Saúl Álvarez Lara
18 mayo de 2020 - 12:09 AM


El director y creador de Ficción, Saúl Álvarez Lara, comparte con los lectores de El Mundo la edición 8 de la revista Ficción

Les Misérables: la fascinante historia de Ladj Ly | El Mundo

Sobre los espacios públicos. Una ciudad casi amordazada | El Mundo

La pesadilla de la casa tomada | El Mundo


Pandemic made me realise Bengaluru is a labour camp with a few apartments: Abhishek Majumdar | Lifestyle News,The Indian Express

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Pandemic made me realise Bengaluru is a labour camp with a few apartments: Abhishek Majumdar | Lifestyle News,The Indian Express

lockdown, pandemic, Theatre director Abhishek Majumdar, relief work, indian express, indian express news

Pandemic made me realise Bengaluru is a labour camp with a few apartments: Abhishek Majumdar

MAY 31, 2020 7:37:43 PM
For 15 years, Abhishek Majumdar has created plays on the fragility of human lives trapped in war and other upheavals. When the lockdown turned him into a relief worker, the award-winning theatre director found himself in a baffling new conflict zone.

Meet the original Gulabo and Sitabo — two glove puppets from UP | Lifestyle News,The Indian Express

SpaceX Crew Dragon: A new era in space exploration | Explained News,The Indian Express

Station Welcomes First SpaceX Crew Dragon with Astronauts | NASA

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Station Welcomes First SpaceX Crew Dragon with Astronauts | NASA



Expedition 63 Crew

International Space Station 

Welcomes First SpaceX Crew 

Dragon with NASA Astronauts



SpaceX Docking
The Expedition 63 crew welcomes Bob Behnken and Doug Hurley to the International Space Station
Credits: NASA / Bill Stafford
NASA astronauts Robert Behnken and Douglas Hurley arrived at the International Space Station on Sunday aboard the first commercially built and operated American spacecraft to carry humans to orbit, opening a new era in human spaceflight.
The pair of astronauts docked to the space station’s Harmony module at 10:16 a.m. EDT Sunday as the microgravity laboratory flew 262 miles above the border northern China and Mongolia.
Behnken and Hurley, the first astronauts to fly to SpaceX’s Crew Dragon to the station, were welcomed as crew members of Expedition 63 by fellow NASA astronaut Chris Cassidy and two Russian cosmonauts Anatoly Ivanishin and Ivan Vagner.
“The whole world saw this mission, and we are so, so proud of everything you’ve done for our country and, in fact, to inspire the world," NASA Administrator Jim Bridenstine told the crew from the floor of Mission Control in Houston. “This represents a transition in how we do spaceflight from the United States of America. NASA is not going to purchase, own and operate rockets and capsules the way we used to; we’re going to partner with commercial industry. 
“This model is going to apply when we go to the Moon,” Bridenstine said. “ When we go to the Moon we’re going to land on the surface of the Moon with commercial landers.  All of this is leading up to an amazing day where we have humans living and working for long periods of time on the surface of the Moon, and doing it with a purpose. And that purpose, of course, is to go to Mars.”
The docking followed the first successful launch of Crew Dragon with astronauts on a SpaceX Falcon 9 rocket at 3:22 p.m. EDT Saturday from Launch Complex 39A at NASA’s Kennedy Space in Florida, the same launch pad used for the Apollo 11 Moon landing mission.
SpaceX Docking
NASA Administrator Jim Bridenstine talks to Astronauts Doug Hurley and Bob Behnken after their arrival to station
Credits: NASA / Bill Stafford
After reaching orbit, Behnken and Hurley named their Crew Dragon spacecraft “Endeavour” as a tribute to the first space shuttle each astronaut had flown aboard. Endeavour also flew the penultimate mission of the Space Shuttle Program, launching in May 2011 from the same pad.
“Dragon was huffing and puffing all the way into orbit, and we were definitely driving or riding a Dragon all the way up,” Behnken said during the welcoming ceremony inside the space station’s Harmony module. "While we're on-board the space station with a new spacecraft, we do hope to put her through her paces. So the good ship Endeavour is going to get a lot of checkout over the next week or two here, and hopefully we’ll be able to declare her operational."
“It's great to get the United States back in the crewed launch business and we're just really glad to be onboard this magnificent complex. We’re just happy to be here, and Chris is going to put us work," Hurley added. “We had a couple of opportunities to take it (Dragon) out for a spin so to speak, once after we got into orbit last night and today about 20 minutes before we docked. My compliments to the folks back at Hawthorne and SpaceX on how it flew. We couldn’t be happier about the performance of the vehicle.”
Cassidy, Hurley and Behnken will participate in a live NASA Television crew news conference from orbit on Monday, June 1, beginning at 11:15 a.m. on NASA TV and the agency’s website.
This flight, known as NASA’s SpaceX Demo-2, is an end-to-end test to validate the SpaceX crew transportation system, including launch, in-orbit, docking and landing operations. This is SpaceX’s second spaceflight test of its Crew Dragon and its first test with astronauts aboard, and will pave the way for its certification for regular crew flights to the station as part of NASA’s Commercial Crew Program.  
SpaceX Docking
The view from Mission Control Houston as the SpaceX Crew Dragon docks to the International Space Station
Credits: NASA / Bill Stafford
The crew will remain busy as they continue to test and demonstrate the capabilities of Dragon Endeavour while it is docked to the space station. The Crew Dragon being used for this flight test can stay in orbit about 110 days, and the specific mission duration will be determined once on station based on the readiness of the next commercial crew launch. The operational Crew Dragon spacecraft will be capable of staying in orbit for at least 210 days as a NASA requirement.
At the end of the mission, Behnken and Hurley will board the spacecraft, which will autonomously undock, depart the space station and returns to Earth through a parachute-assisted splashdown in the Atlantic Ocean, where the SpaceX recovery ship crew will pick up the crew and return them to Cape Canaveral.
SpaceX Docking
The Mission Control Center in Houston as Bob Behnken and Doug Hurley are welcomed aboard the International Space Station
Credits: NASA / Bill Stafford
Hurley is the spacecraft commander for Demo-2, responsible for activities such as launch, landing and recovery. He was selected as an astronaut in 2000 and has completed two spaceflights. Hurley served as pilot and lead robotics operator for both STS‐127 in July 2009 and STS‐135, the final space shuttle mission, in July 2011.
NASA’s Commercial Crew Program is working with SpaceX and Boeing to design, build, test and operate safe, reliable and cost-effective human transportation systems to low-Earth orbit. Both companies are focused on test missions, including abort system demonstrations and crew flight tests, ahead of regularly flying crew missions to the space station. Both companies’ crewed flights will be the first times in history NASA has sent astronauts to space on systems owned, built, tested and operated by private companies. 
View or listen to the SpaceX Dragon Demo-2 welcome ceremony at:
Learn more about NASA’s Commercial Crew program at:
Last Updated: June 1, 2020
Editor: Mark Garcia

NASA’s Webb Telescope is an International Endeavor | NASA

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NASA’s Webb Telescope is an International Endeavor | NASA





NASA’s Webb Telescope is 

an International Endeavor

The James Webb Space Telescope is an international endeavor with widespread global contributions and experts in more than a dozen countries dedicated to the build, launch, and future science of this flagship NASA space observatory. The cooperation and collaboration on Webb is an incredible testament to what is possible with worldwide teamwork.
Webb International contributors
Thousands of scientists, engineers, and technicians from 14 countries, 29 U.S. states, and Washington, D.C. contributed to build, test, and integrate NASA's James Webb Space Telescope. In total, 217 distinct companies, agencies, and universities participated – 142 from the United States, 63 from 12 European nations, and 12 from Canada.
Credits: NASA's Goddard Space Flight Center.
Thousands of scientists, engineers, and technicians from 14 countries, 29 U.S. states, and Washington, D.C. contributed to build, test, and integrate Webb. In total, 217 distinct companies, agencies, and universities participated – 142 from the United States, 63 from 12 European nations, and 12 from Canada.
“The Webb international partnerships are the perfect example of what can be accomplished when we, as a human race, work together to attain a common goal,” said Bill Ochs, the Webb project manager at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. “When Webb launches, it will truly be a telescope for the world.”
As another element of international collaboration, Webb will launch in 2021 onboard an Ariane 5 rocket from the European Spaceport located near Kourou, French Guiana, on the northeast coast of South America.
Once in orbit, scientists will use Webb to conduct cutting-edge research on the cosmos. Webb will be a general-purpose observatory, meaning that competitively selected proposals from scientists around the world will be used to develop Webb’s observing plans. For more on the Webb science proposal process, please see http://www.stsci.edu/jwst/science-planning.
“Webb is a tremendous feat of engineering, built through the collaborative work and great dedication of a vast international community,” said Gregory L. Robinson, the Webb program director at NASA Headquarters in Washington, D.C. "Once launched, astronomers worldwide will be able to study the world-class science it will deliver and give us a broader understanding of the origins of our universe, inspiring future generations."
The James Webb Space Telescope is your eye-piece to the uncharted, unknown, and unimagined. This video is an overview of the mission, its goals, and its challenges.
Credits: NASA's Goddard Space Flight Center.
Built and available for use by an international consortium, Webb will serve astronomers worldwide. In an effort to cross language barriers and connect Webb to all people, top facts about Webb were translated into 44 languages. For more on the Webb Language Cards, please see https://jwst.nasa.gov/content/features/keyFactsInternational/.
The James Webb Space Telescope will be the world’s premier space science observatory when it launches in 2021. Webb will solve mysteries in our solar system, look beyond to distant worlds around other stars, and probe the mysterious structures and origins of our universe and our place in it. Webb is an international program led by NASA with its partners, ESA (European Space Agency) and the Canadian Space Agency.
For more information about the Webb Global Contributor Map, visit https://svs.gsfc.nasa.gov/13371
For more information about Webb, visit www.nasa.gov/webb
By Peter Sooy
NASA Goddard Space Flight Center
Last Updated: June 1, 2020
Editor: Lynn Jenner

An Introduction to the James Webb Space Telescope Mission

New Sunspots Potentially Herald Increased Solar Activity | NASA

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New Sunspots Potentially Herald Increased Solar Activity | NASA



New Sunspots Potentially 

Herald Increased Solar Activity

On May 29, 2020, a family of sunspots — dark spots that freckle the face of the Sun, representing areas of complex magnetic fields — sported the biggest solar flare since October 2017. Although the sunspots are not yet visible (they will soon rotate into view over the left limb of the Sun), NASA spacecraft spotted the flares high above them.
The flares were too weak to pass the threshold at which NOAA's Space Weather Prediction Center (which is the U.S. government's official source for space weather forecasts, watches, warnings and alerts) provides alerts. But after several months of very few sunspots and little solar activity, scientists and space weather forecasters are keeping their eye on this new cluster to see whether they grow or quickly disappear. The sunspots may well be harbingers of the Sun's solar cycle ramping up and becoming more active. 
Or, they may not. It will be a few more months before we know for sure.
A satellite image of the Sun, colorized in gold. A bright spot of light hovers over the left horizon.
On the upper left side of this image from May 29, 2020, from NASA's Solar Dynamics Observatory — shown here in the 171-angstrom wavelength, which is typically colorized in gold — one can see a spot of light hovering above the left horizon. This light emanates from solar material tracing out magnetic field lines that are hovering over a set of sunspots about to rotate over the left limb of the Sun.
Credits: NASA/Solar Dynamics Observatory/Joy Ng
As the Sun moves through its natural 11-year cycle, in which its activity rises and falls, sunspots rise and fall in number, too. NASA and NOAA track sunspots in order to determine, and predict, the progress of the solar cycle — and ultimately, solar activity. Currently, scientists are paying close attention to the sunspot number as it's key to determining the dates of solar minimum, which is the official start of Solar Cycle 25. This new sunspot activity could be a sign that the Sun is possibly revving up to the new cycle and has passed through minimum. 
However, it takes at least six months of solar observations and sunspot-counting after a minimum to know when it's occurred. Because that minimum is defined by the lowest number of sunspots in a cycle, scientists need to see the numbers consistently rising before they can determine when exactly they were at the bottom. That means solar minimum is an instance only recognizable in hindsight: It could take six to 12 months after the fact to confirm when minimum has actually passed. 
This is partly because our star is extremely variable. Just because the sunspot numbers go up or down in a given month doesn't mean it won't reverse course the next month, only to go back again the month after that. So, scientists need long-term data to build a picture of the Sun’s overall trends through the solar cycle. Commonly, that means the number we use to compare any given month is the average sunspot number from six months both backward and forward in time — meaning that right now, we can confidently characterize what October 2019 looks like compared to the months before it (there were definitely fewer sunspots!), but not yet what November looks like compared to that.
On May 29, at 3:24 a.m. EST, a relatively small M-class solar flare blazed from these sunspots. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth's atmosphere to physically affect humans on the ground, however — when intense enough — they can disturb the atmosphere in the layer where GPS and communications signals travel. The intensity of this flare was below the threshold that could affect geomagnetic space and below the threshold for NOAA to create an alert.
Nonetheless, it was the first M-class flare since October 2017 — and scientists will be watching to see if the Sun is indeed beginning to wake up.
Last Updated: May 29, 2020
Editor: Lina Tran

Lithium Comes From Exploding Stars | NASA

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Lithium Comes From Exploding Stars | NASA



Lithium Comes From 

Exploding Stars

The element lithium has all kinds of uses on Earth: in lithium-ion batteries, in heat-resistant glass and ceramics, and in certain medications that psychiatrists prescribe. Now, a new NASA-funded study suggests that most of the lithium in our solar system — and even in the galaxy — came from bright stellar explosions called classical novae. 
Illustration of Hero Starrfield
Artist’s interpretation of the explosion of a recurrent nova, RS Ophiuci. This is a binary star in the constellation of Ophiuchus and is approximately 5,000 light-years away. It explodes roughly every 20 years when the gas flowing from the large star that falls onto the white dwarf reaches temperatures exceeding 10 million degrees.
Credits: Illustration by David A. Hardy
A classical nova happens when a white dwarf (a stellar remnant about the diameter of Earth, but the mass of the Sun) is orbited by a larger star. Gas falls from the larger star onto the white dwarf and when enough gas has accumulated on the white dwarf, an explosion, or nova, occurs. There are about 50 of these explosions per year in our galaxy, and the brightest ones are observed by astronomers worldwide.
Researchers led by Sumner Starrfield of Arizona State University, funded by a NASA theory grant, used a mixture of computer predictions and observational data to determine the amount of lithium produced in a nova explosion. The computer models estimated how gas is ejected in a nova and what its chemical composition should be. 
To develop these models, researchers referenced observations of classical novae from many different telescopes. Their previous work used ground-based telescopes, space telescopes including NASA’s Hubble and Spitzer, and the 747 airborne observatory SOFIA.
While the big bang created a small amount of lithium in the initial formation of the universe, the majority of lithium gets manufactured in the nuclear reactions that power the nova explosions. This study suggests that the nova explosions would then distribute that lithium throughout the galaxy, and deliver most of the lithium we use today in electronics and medicine. 
This new insight about lithium represents one piece of the puzzle that many astronomers are working on: Which kinds of stellar processes produce which elements.
The team also determined that a fraction of these classical novae will evolve until they explode as kind of supernova called type Ia. These exploding stars become brighter than a galaxy and can be discovered at very large distances in the universe. 
Type Ia supernovae have been used to study the evolution of the universe and were the supernovae used in the mid-1990s to discover dark energy, which is causing the expansion of the universe to speed up. These explosions also produce much of the iron in the galaxy and solar system, an important constituent of our red blood cells, which carry oxygen throughout the body.
“This is ongoing research in both theory and observations,” says Starrfield. “While we continue to work on theories, we’re looking forward to when we can use NASA’s James Webb Space Telescope and the newly named Nancy Grace Roman Space Telescope to observe novae and learn more about the origins of our universe.”  

Media Contact
Elizabeth Landau

NASA Headquarters, Washington, DC
Media Contact
Karin Valentine
Arizona State University
Last Updated: June 1, 2020
Editor: Tricia Talbert

Hubble Grabs a Stellar Latte | NASA

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Hubble Grabs a Stellar Latte | NASA



Hubble Grabs a Stellar Latte

light, glowing spiral galaxy NGC 3895 as seen by Hubble
Far away in the Ursa Major constellation is a swirling galaxy that would not look out of place on a coffee made by a starry-eyed barista. NGC 3895 is a barred spiral galaxy that was first spotted by William Herschel in 1790 and was later observed by the NASA/ESA Hubble Space Telescope.
Hubble's orbit high above Earth's distorting atmosphere allows astronomers to make the high-resolution observations that are essential to opening new windows on planets, stars and galaxies — such as this beautiful view of NGC 3895. The telescope is positioned approximately 340 miles above the ground, where it whirls around Earth at over 17,000 miles per hour and takes 95 minutes to complete one orbit.
Text credit: ESA (European Space Agency)
Image credit: ESA/Hubble, NASA and R. Barrows
Last Updated: May 29, 2020
Editor: Rob Garner

La crisis climática amenaza más de lo que se pensaba a los insectos

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La crisis climática amenaza más de lo que se pensaba a los insectos





La crisis climática amenaza más de lo que se pensaba a los insectos

Hasta ahora, los insectos de los trópicos parecían ser los más amenazados por el cambio climático al vivir al límite de su temperatura óptima. Un equipo internacional de científicos, con participación española, ha analizado los datos existentes y concluye que los insectos de zonas templadas, como España, serían tan vulnerables al aumento de temperaturas como los insectos tropicales.

La nave Crew Dragon se acopla con éxito a la estación espacial internacional

Crew Dragon Animation

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