This year marks the 50th anniversary of Earth Day, and to commemorate the big day we’re bringing you exclusive access our Acting Director of Earth Sciences, Sandra Cauffman, and Associate Administrator for the Science Mission Directorate, Dr. Thomas Zurbuchen! They will be teaming up to take your questions in an Answer Time session on Earth Day, April 22, from 12-1pm EDT here on NASA’s Tumblr! Make sure to ask your question now by visiting http://nasa.tumblr.com/ask!
Our investment in space – both the unique Earth science we conduct from orbit and the technology we’ve developed by living in space and exploring our solar system and universe – is returning benefits every day to people around the world, particularly those who are working on environmental issues. From documenting Earth’s changing climate to creating green technologies to save energy and natural resources, we’re working to help us all live more sustainably on our home planet and adapt to natural and human-caused changes.
From space we study: dust storms, volcanoes, flooding, coral reefs, night lights, wildfires, urban growth, food production, mosquito tracking and other human health issues, precipitation across the world, hurricanes and typhoons, soil moisture, land and sea ice, and changes to the land and sea surfaces.
From airborne research planes we track: changes in polar ice, glaciers, sea level rise, cloud formation, storms, sea level rise and Earth’s changing landscape.
Our Earth science focus areas include: Atmospheric Composition, Weather and Atmospheric Dynamics, Climate Variability and Change, Water and Energy Cycle, Carbon Cycle and Ecosystems, Earth Surface and Interior
Keep up to date with all our Earth Science missions and research by following NASA Earth on Twitter, Facebook and Instagram.
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Nora AlMatrooshi, the first Emirati woman astronaut, worked as a piping engineer before becoming an astronaut candidate for the United Arab Emirates. https://mbrsc.ae/team/nora/
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On June 24, 2020, NASA announced the agency’s headquarters building in Washington, D.C., was to be named after Mary W. Jackson to celebrate her life and legacy. We collaborated with Events DC to create artwork inspired by Jackson’s story as the agency’s first Black female engineer.
Take a look at how six local female artists interpreted Jackson’s place in history through their individual creative lenses.
“To see Mary [W.] Jackson be so successful and to get the recognition that she deserves, it hits home for me in a couple ways.”
Tenbeete Solomon AKA Trap Bob is a visual artist, illustrator, and animator based in Washington, D.C.
“Art is so important across the board because it’s really a form of documentation,” says Trap Bob. “It’s creating a form of a history… that’s coming from the true essence of what people feel in the communities.”
“People can relate to things that may seem foreign to them through imagery.”
Jamilla Okubo is an interdisciplinary artist exploring the intricacies of belonging to an American, Kenyan, and Trinidadian identity.
“I wanted to create a piece that represented and celebrated and honored Mary [W.] Jackson, to remember the work that she did,” says Okubo.
“This is a figure who actually looks like us, represents us.”
Tracie Ching is an artist and self-taught illustrator working in Washington, D.C.
“The heroes and the figures that we had presented to us as kids didn’t ever look like me or my friends or the vast majority of the people around me,” says Ching.
"To be even a Black artist making artwork about space — it’s because of her triumphs and her legacy that she left behind.”
Jennifer White-Johnson is an Afro-Latina, disabled designer, educator, and activist whose work explores the intersection of content and caregiving with an emphasis on redesigning ableist visual culture.
“My piece is… a take on autistic joy because my son is autistic," says White-Johnson. "And I really just wanted to show him… in a space where we often don’t see Black disabled kids being amplified.”
“In my art, I try to highlight really strong and empowering women."
Julia Chon, better known by her moniker “Kimchi Juice,” is a Washington, D.C.-based artist and muralist.
“As minority women, we are too often overlooked and under recognized for the work and time that we give," says Kimchi Juice. "And so to see Mary W. Jackson finally being given this recognition is fulfilling to me.”
“I wanted when one listens to it, to feel like there is no limit.”
OG Lullabies is a Washington D.C. songwriter, multi-instrumentalist, including violin and electronics.
“When you look back at history… art is the color or the sound in the emotions that encapsulated the moment,” says OG Lullabies. “It’s the real human experience that happens as time passes.”
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Parker Solar Probe will fly directly through the Sun’s atmosphere, called the corona. Getting better measurements of this region is key to understanding our Sun. For instance, the Sun releases a constant outflow of solar material, called the solar wind. We think the corona is where this solar wind is accelerated out into the solar system, and Parker Solar Probe’s measurements should help us pinpoint how that happens.
The solar wind, along with other changing conditions on the Sun and in space, can affect Earth and are collectively known as space weather. Space weather can trigger auroras, create problems with satellites, cause power outages (in extreme cases), and disrupt our communications signals. That’s because space weather interacts with Earth’s upper atmosphere, where signals like radio and GPS travel from place to place.
Parker Solar Probe is named after pioneering physicist Gene Parker. In the 1950s, Parker proposed a number of concepts about how stars — including our Sun — give off energy. He called this cascade of energy the solar wind. Parker also theorized an explanation for the superheated solar atmosphere, the corona, which is hotter than the surface of the Sun itself.
Getting the answers to our questions about the solar wind and the Sun’s energetic particles is only possible by sending a probe right into the furnace of the Sun’s corona, where the spacecraft can reach 2,500 degrees Fahrenheit. Parker Solar Probe and its four suites of instruments – studying magnetic and electric fields, energetic particles, and the solar wind – will be protected from the Sun’s enormous heat by a 4.5-inch-thick carbon-composite heat shield.
Over the course of its seven-year mission, Parker Solar Probe will make two dozen close approaches to the Sun, continuously breaking its own records and sending back unprecedented science data.
Getting close to the Sun is harder than you might think, since the inertia of a spacecraft launched from Earth will naturally carry it in repeated orbits on roughly the same path. To nudge the orbit closer to the Sun on successive trips, Parker Solar Probe will use Venus’ gravity.
This is a technique called a gravity assist, and it’s been used by Voyager, Cassini, and OSIRIS-REx, among other missions. Though most missions use gravity assists to speed up, Parker Solar Probe is using Venus’ gravity to slow down. This will let the spacecraft fall deeper into the Sun’s gravity and get closer to our star than any other spacecraft in human history.
Get a behind-the-scenes view of the Parker Solar Probe under construction in a clean room on the NASA Sun Science Facebook page.
Keep up with all the latest on Parker Solar Probe at nasa.gov/solarprobe or on Twitter @NASASun.
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What would happen if a Black hole would be near the earth? What would be the consequences to humans?
It’s amazing what you can do with a little needle and thread! For #WorldEmbroideryDay, we asked what NASA imagery inspired you. You responded with a variety of embroidered creations, highlighting our different areas of study.
Here’s what we found:
Wendy Edwards, a project coordinator with Earth Science Data Systems at NASA, created this embroidered piece inspired by Webb’s Carina Nebula image. Captured in infrared light, this image revealed for the first time previously invisible areas of star birth. Credit: Wendy Edwards, NASA. Pattern credit: Clare Bray, Climbing Goat Designs
Wendy Edwards, a project coordinator with Earth Science Data Systems at NASA, first learned cross stitch in middle school where she had to pick rotating electives and cross stitch/embroidery was one of the options. “When I look up to the stars and think about how incredibly, incomprehensibly big it is out there in the universe, I’m reminded that the universe isn’t ‘out there’ at all. We’re in it,” she said. Her latest piece focused on Webb’s image release of the Carina Nebula. The image showcased the telescope’s ability to peer through cosmic dust, shedding new light on how stars form.
Danielle Currie of Satellite Stitches created a piece inspired by the Caspian Sea, taken by NASA’s ocean color satellites. Credit: Danielle Currie/Satellite Stitches
Danielle Currie is an environmental professional who resides in New Brunswick, Canada. She began embroidering at the beginning of the Covid-19 pandemic as a hobby to take her mind off the stress of the unknown. Danielle’s piece is titled “46.69, 50.43,” named after the coordinates of the area of the northern Caspian Sea captured by LandSat8 in 2019.
An image of the Caspian Sea captured by Landsat 8 in 2019. Credit: NASA
Melissa Cole of Star Stuff Stitching created an embroidery piece based on the Hubble image Pillars of Creation released in 1995. Credit: Melissa Cole, Star Stuff Stitching
Melissa Cole is an award-winning fiber artist from Philadelphia, PA, USA, inspired by the beauty and vastness of the universe. They began creating their own cross stitch patterns at 14, while living with their grandparents in rural Michigan, using colored pencils and graph paper. The Pillars of Creation (Eagle Nebula, M16), released by the Hubble Telescope in 1995 when Melissa was just 11 years old, captured the imagination of a young person in a rural, religious setting, with limited access to science education.
Lauren Wright Vartanian of the shop Neurons and Nebulas created this piece inspired by the Hubble Space Telescope’s 2015 25th anniversary re-capture of the Pillars of Creation. Credit: Lauren Wright Vartanian, Neurons and Nebulas
Lauren Wright Vartanian of Guelph, Ontario Canada considers herself a huge space nerd. She’s a multidisciplinary artist who took up hand sewing after the birth of her daughter. She’s currently working on the illustrations for a science themed alphabet book, made entirely out of textile art. It is being published by Firefly Books and comes out in the fall of 2024. Lauren said she was enamored by the original Pillars image released by Hubble in 1995. When Hubble released a higher resolution capture in 2015, she fell in love even further! This is her tribute to those well-known images.
Darci Lenker of Darci Lenker Art, created a rectangular version of Webb’s Pillars of Creation. Credit: Darci Lenker of Darci Lenker Art
Darci Lenker of Norman, Oklahoma started embroidery in college more than 20 years ago, but mainly only used it as an embellishment for her other fiber works. In 2015, she started a daily embroidery project where she planned to do one one-inch circle of embroidery every day for a year. She did a collection of miniature thread painted galaxies and nebulas for Science Museum Oklahoma in 2019. Lenker said she had previously embroidered the Hubble Telescope’s image of Pillars of Creation and was excited to see the new Webb Telescope image of the same thing. Lenker could not wait to stitch the same piece with bolder, more vivid colors.
Darci Lenker of Darci Lenker Art was inspired by NASA’s imaging of the Milky Way Galaxy. Credit: Darci Lenker
In this piece, Lenker became inspired by the Milky Way Galaxy, which is organized into spiral arms of giant stars that illuminate interstellar gas and dust. The Sun is in a finger called the Orion Spur.
This image shows an embroidery design based on the cosmic microwave background, created by Jessica Campbell, who runs Astrostitches. Inside a tan wooden frame, a colorful oval is stitched onto a black background in shades of blue, green, yellow, and a little bit of red. Credit: Jessica Campbell/ Astrostitches
Jessica Campbell obtained her PhD in astrophysics from the University of Toronto studying interstellar dust and magnetic fields in the Milky Way Galaxy. Jessica promptly taught herself how to cross-stitch in March 2020 and has since enjoyed turning astronomical observations into realistic cross-stitches. Her piece was inspired by the cosmic microwave background, which displays the oldest light in the universe.
The full-sky image of the temperature fluctuations (shown as color differences) in the cosmic microwave background, made from nine years of WMAP observations. These are the seeds of galaxies, from a time when the universe was under 400,000 years old. Credit: NASA/WMAP Science Team
Katy Mersmann, a NASA social media specialist, created this embroidered piece based on NASA’s Goddard Institute for Space Studies (GISS) global annual temperature record. Earth’s average surface temperature in 2020 tied with 2016 as the warmest year on record. Credit: Katy Mersmann, NASA
Katy Mersmann is a social media specialist at NASA’s Goddard Space Flight Center in Greenbelt, Md. She started embroidering when she was in graduate school. Many of her pieces are inspired by her work as a communicator. With climate data in particular, she was inspired by the researchers who are doing the work to understand how the planet is changing. The GISTEMP piece above is based on a data visualization of 2020 global temperature anomalies, still currently tied for the warmest year on record.
In addition to embroidery, NASA continues to inspire art in all forms. Check out other creative takes with Landsat Crafts and the James Webb Space telescope public art gallery.
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Trillions of microorganisms live on and in the human body, many of them essential to its function and health. These organisms, collectively known as the microbiota, outnumber cells in the body by at least five times.
Microorganisms in the intestinal tract, the gut microbiota, play an especially important role in human health. An investigation on the International Space Station, Rodent Research-7 (RR-7), studies how the gut microbiota changes in response to spaceflight, and how that change in turn affects the immune system, metabolic system, and circadian or daily rhythms.
Research shows that the microbiota in the mammalian digestive tract has a major impact on an individual’s physiology and behavior. In humans, disruption of microbial communities has been linked to multiple health problems affecting intestinal, immune, mental and metabolic systems.
The investigation compares two different genetic strains of mice and two different durations of spaceflight. Twenty mice, ten of each strain, launch to the space station, and another 20 remain on the ground in identical conditions (except, of course, for the absence of gravity). Mice are a model organism that often serves as a scientific stand-in for other mammals and humans.
Fecal material collected from the mice every two weeks will be examined for changes in the gut microbiota. Researchers plan to analyze fecal and tissue samples after 30 and 90 days of flight to compare the effects of different durations of time in space.
With a better understanding of relationships between changes such as disruption in sleep and an imbalance of microbial populations, researchers can identify specific factors that contribute to changes in the microbiota. Further studies then can determine proactive measures and countermeasures to protect astronaut health during long-term missions.
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Each month, the International Space Station focuses on an area of research. In September, the research focus was biology, encompassing cells, plants, animals, genetics, biochemistry, human physiology and more.
Benefits from this research are vast and include: combating diseases, reducing our environmental footprint, feeding the world’s population and developing cleaner energy.
Here’s a recap of some topics we studied this month:
Cells
Scientists studied T-cells in orbit to better understand how human immune systems change as they age. For an immune cell, the microgravity environment mimics the aging process. Because spaceflight-induced and aging-related immune suppression share key characteristics, researchers expect the results from this study will be relevant for the general population.
NASA to Napa
We raised a glass to the space station to toast how the study of plants in space led to air purification technology that keeps the air clean in wine cellars and is also used in homes and medical facilities to help prevent mold.
One-Year Mission
This month also marked the halfway point of the One-Year Mission. NASA Astronaut Scott Kelly and Roscosmos Cosmonaut Mikhail Kornienko reached the midpoint on Sept. 15. This mission will result in valuable data about human health and the effects of microgravity on the body.
Microbes
Since microbes can threaten crew health and jeopardize equipment, scientists study them on astronauts’ skin and aboard the space station. Samples like saliva, blood, perspiration and swaps of equipment are collected to determine how microgravity, environment, diet and stress affect the microorganisms.
Model Organisms
Model organisms have characteristics that allow them to easily be maintained, reproduced and studied in a laboratory. Scientists investigate roundworms, medaka fish and rodents on the station because of this reason. They can also provide insight into the basic cellular and molecular mechanisms of the human body.
For more information about research on the International Space Station, go HERE.
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It’s Black Friday, but for us, it’s the annual Black Hole Friday! Today, we’ll post awesome images and information about black holes.
A black hole is a place in space where gravity pulls so much that even light cannot get out. The gravity is so strong because matter has been squeezed into a tiny space…sort of like all of those shoppers trying to fit into the department stores today.
Because no light can get out, you can’t see black holes with the naked eye. Space telescopes with special tools help find black holes (similar to how those websites help you discover shopping deals).
How big are black holes? Black holes can be large or small…just like the lines in all of the stores today. Scientists think the smallest black holes are as small as just one atom. These black holes are very tiny but have the mass of a large mountain!
So how do black holes form? Scientists think the smallest black holes formed when the universe began. Stellar black holes are made when the center of a very big star collapses. When this happens, it causes a supernova.
A supernova is an exploding star that blasts part of its mass into space.
Supermassive black holes are an altogether different story. Scientists think they were made at the same time as the galaxy they in they reside. Supermassive black holes, with their immense gravitational pull, are notoriously good at clearing out their immediate surroundings by eating nearby objects.
When a star passes within a certain distance of a black hole, the stellar material gets stretched and compressed -- or "spaghettified" -- as the black hole swallows it. A black hole destroying a star, an event astronomers call "stellar tidal disruption," releases an enormous amount of energy, brightening the surroundings in an event called a flare. In recent years, a few dozen such flares have been discovered.
Then there are ultramassive black holes, which are found in galaxies at the centers of massive galaxy clusters containing huge amounts of hot gas.
Get more fun facts and information about black holes.
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Mercury is the smallest planet in our solar system and is only slightly larger than Earth’s moon. To give you some perspective, if the sun were as tall as a typical front door, Earth would be the size of a nickel and Mercury would be about as big as a green pea.
Mercury is the closest planet to the sun. Daytime temperatures can reach 430 degrees Celsius (800 degrees Fahrenheit) and drop to –180 degrees Celsius (-290 degrees Fahrenheit) at night.
Here are a few fun facts about Mercury:
Mercury takes only 88 Earth days to orbit the sun
If we could stand on Mercury’s surface when it is at its closest point to the sun, the sun would appear more than three times larger than it does here on Earth
Mercury is home to one of the largest impact basins in the solar system: the Caloris Basin. The diameter of this impact basin is the length of 16,404 football fields (minus the end zones) placed end to end!
Mercury is one of only two planets in our solar system that do not have moons (Venus is the other one)
Mercury completes three rotations for every two orbits around the sun. That means that if you wanted to stay up from sunrise to sunrise on Mercury, you’d be up for 176 Earth days…you’d need a LOT of coffee!
Two missions have visited Mercury:
Mariner 10 was the first mission to Mercury, and 30 years later, our MESSENGER mission was the second to visit the planet. Mariner 10 was also the first spacecraft to reach one planet by using the gravity of another planet (in this case, Venus) to alter its speed and trajectory.
MESSENGER was the first spacecraft to orbit Mercury, The spacecraft had its own shades to protect it from the light of the sun. This is important since sunlight on Mercury can be as much as 11 times brighter than it is here on Earth. The spacecraft was originally planned to orbit Mercury for one year, but exceeded expectations and worked for over four years capturing extensive data. On April 30, 2015, the spacecraft succumbed to the pull of solar gravity and impacted Mercury’s surface.
Water Ice?
The MESSENGER spacecraft observed compelling support for the long-held hypothesis that Mercury harbors abundant water ice and other frozen volatile materials in its permanently shadowed polar craters.
This radar image of Mercury’s north polar region. The areas shown in red were captured by MESSENGER, compared to the yellow deposits imaged by Earth-based radar. These areas are believed to consist of water ice.
For more than seven hours on Monday, May 9, Mercury will be visible as a tiny black dot crossing the face of the sun. This rare event – which happens only slightly more than once a decade – is called a transit.
Where: Skywatchers in Western Europe, South America and eastern North America will be able to see the entirety of the transit. The entire 7.5-hour path across the sun will be visible across the Eastern U.S. – with magnification and proper solar filters – while those in the West can observe the transit in progress at sunrise.
Watch: We will stream a live program on NASA TV and the agency’s Facebook page from 10:30 to 11:30 a.m. – an informal roundtable during which experts representing planetary, heliophysics and astrophysics will discuss the science behind the Mercury transit. Viewers can ask questions via Facebook and Twitter using #AskNASA. Unlike the 2012 Venus transit of the sun, Mercury is too small to be visible without magnification from a telescope or high-powered binoculars. Both must have safe solar filters made of specially-coated glass or Mylar; you can never look directly at the sun.
To learn more about our solar system and the planets, visit: http://solarsystem.nasa.gov/
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Spacewalk complete and new astronaut record set! Shane Kimbrough and Peggy Whitson of NASA successfully reconnected cables and electrical connections on an adapter-3 that will provide the pressurized interface between the station and the second of two international docking adapters to be delivered to the complex to support the dockings of U.S. commercial crew spacecraft in the future. The duo were also tasked with installing four thermal protection shields on the Tranquility module of the International Space Station.
Having completed her eighth spacewalk, Whitson now holds the record for the most spacewalks and accumulated time spacewalking by a female astronaut. Spacewalkers have now spent a total of 1,243 hours and 42 minutes outside the station during 199 spacewalks in support of assembly and maintenance of the orbiting laboratory.
Astronaut Thomas Pesquet of ESA posted this image and wrote, ' Shane and Peggy on their way to their first #spacewalk tasks.'
Credit: ESA/NASA
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