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By European Space Agency
The third Copernicus Sentinel-2 satellite launched today aboard the final Vega rocket from Europe’s Spaceport in French Guiana. Sentinel-2C will continue providing high-resolution data that is essential to Copernicus – Europe’s world leading Earth observation programme.
Sentinel-2C launched into orbit on 5 September at 03:50 CEST (4 September 22:50 local time) and separated from the Vega rocket at approximately 04:48 CEST.
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By NASA
On July 19, 2024, NASA officially named Johnson Space Center’s building 12 the “Dorothy Vaughan Center in Honor of the Women of Apollo.” A portrait of Dorothy Vaughan is now the central feature at the entrance of the newly named building. This portrait was hand-painted by Eliza Hoffman, an accomplished artist who is also a recent graduate from Clear Creek Independent School District.
Recent Clear Creek Independent School District graduate and artist Eliza Hoffman hand-painted a portrait of Dorothy Vaughan in honor of the Women of Apollo. The handcrafted portrait of Vaughan took about a month to complete. The photo the Vaughan family wanted to use for the ceremony was black and white, so Hoffman had to brainstorm how to bring the photo to life in living color. This led her to search for colorized versions of the reference photo on the internet to guide her in the painting process. She revealed that she first learned of Vaughan from the movie “Hidden Figures,” which she was inspired to watch after reading the book “Women in Space” throughout her childhood.
When privately revealing the artwork to the Vaughan family, Hoffman felt their emotion and joy. She reflected, “I am honored to have the family of such a great woman be so moved by my painting. It is a memory that I will always remember.”
NASA’s Johnson Space Center Director Vanessa Wyche greets artist Eliza Hoffman at the surprise unveiling of Dorothy Vaughan’s painted portrait in the main hallway of the Dorothy Vaughan Center in Honor of the Women of Apollo.NASA/David DeHoyos Hoffman shared that “One of the great things about making art is that it communicates information about the subject and its emotion to the audience. In this case, I was given the chance to create a portrait which will help inform people for years to come about Dorothy Vaughan’s life and legacy.”
At the ribbon-cutting ceremony, it was noted to Hoffman that her portrait will now become a part of Johnson’s history. Through Hoffman’s research on Vaughan, she noticed that Vaughan was not only a person beloved by many but also a woman that walked with humility and gentleness, which she hopes viewers see in her painting.
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By Space Force
The portrait unveiling marks one of many historic firsts for a military service that was established less than five years prior, Dec. 20, 2019.
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By European Space Agency
A duo of interacting galaxies known as Arp 142 commemorates the second science anniversary of the NASA/ESA/CSA James Webb Space Telescope. Their ongoing interaction was set in motion between 25 and 75 million years ago, when the Penguin (individually catalogued as NGC 2936) and the Egg (NGC 2937) completed their first pass. They will go on to shimmy and sway, completing several additional loops before merging into a single galaxy hundreds of millions of years from now.
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By NASA
6 Min Read Vivid Portrait of Interacting Galaxies Marks Webb’s Second Anniversary
Webb’s view of the interacting galaxies of Arp 142 that combines Webb’s NIRCam and MIRI instrument images. Full image below. Two for two! A duo of interacting galaxies commemorates the second science anniversary of NASA’s James Webb Space Telescope, which takes constant observations, including images and highly detailed data known as spectra. Its operations have led to a “parade” of discoveries by astronomers around the world.
“Since President Biden and Vice President Harris unveiled the first image from the James Webb Space Telescope two years ago, Webb has continued to unlock the mysteries of the universe,” said NASA Administrator Bill Nelson. “With remarkable images from the corners of the cosmos, going back nearly to the beginning of time, Webb’s capabilities are shedding new light on our celestial surroundings and inspiring future generations of scientists, astronomers, and explorers.”
“In just two years, Webb has transformed our view of the universe, enabling the kind of world-class science that drove NASA to make this mission a reality,” said Mark Clampin, director of the Astrophysics Division at NASA Headquarters in Washington. “Webb is providing insights into longstanding mysteries about the early universe and ushering in a new era of studying distant worlds, while returning images that inspire people around the world and posing exciting new questions to answer. It has never been more possible to explore every facet of the universe.”
The telescope’s specialization in capturing infrared light — which is beyond what our own eyes can detect — shows these galaxies, collectively known as Arp 142, locked in a slow cosmic dance. Webb’s observations, which combine near- and mid-infrared light from Webb’s NIRCam (Near-Infrared Camera) and MIRI (Mid-Infrared Instrument), respectively, clearly show that they are joined by a haze represented in blue that is a mix of stars and gas, a result of their mingling.
Their ongoing interaction was set in motion between 25 and 75 million years ago, when the Penguin (individually cataloged as NGC 2936) and the Egg (NGC 2937) completed their first pass. They will go on to shimmy and sway, completing several additional loops before merging into a single galaxy hundreds of millions of years from now.
Image A: Interacting Galaxies Arp 142 (NIRCam and MIRI)
The distorted spiral galaxy at center, the Penguin, and the compact elliptical at left, the Egg, are locked in an active embrace. This near- and mid-infrared image combines data from NASA’s James Webb Space Telescope’s NIRCam (Near-Infrared Camera) and MIRI (Mid-Infrared Instrument), and marks the telescope’s second year of science. Webb’s view shows that their interaction is marked by a glow of scattered stars represented in blue. Known jointly as Arp 142, the galaxies made their first pass by one another between 25 and 75 million years ago, causing “fireworks,” or new star formation, in the Penguin. The galaxies are approximately the same mass, which is why one hasn’t consumed the other. Let’s Dance!
Before their first approach, the Penguin held the shape of a spiral. Today, its galactic center gleams like an eye, its unwound arms now shaping a beak, head, backbone, and fanned-out tail.
Like all spiral galaxies, the Penguin is still very rich in gas and dust. The galaxies’ “dance” gravitationally pulled on the Penguin’s thinner areas of gas and dust, causing them to crash in waves and form stars. Look for those areas in two places: what looks like a fish in its “beak” and the “feathers” in its “tail.”
Surrounding these newer stars is smoke-like material that includes carbon-containing molecules, known as polycyclic aromatic hydrocarbons, which Webb is exceptional at detecting. Dust, seen as fainter, deeper orange arcs also swoops from its beak to tail feathers.
In contrast, the Egg’s compact shape remains largely unchanged. As an elliptical galaxy, it is filled with aging stars, and has a lot less gas and dust that can be pulled away to form new stars. If both were spiral galaxies, each would end the first “twist” with new star formation and twirling curls, known as tidal tails.
Another reason for the Egg’s undisturbed appearance: These galaxies have approximately the same mass or heft, which is why the smaller-looking elliptical wasn’t consumed or distorted by the Penguin.
It is estimated that the Penguin and the Egg are about 100,000 light-years apart — quite close in astronomical terms. For context, the Milky Way galaxy and our nearest neighbor, the Andromeda Galaxy, are about 2.5 million light-years apart. They too will interact, but not for about 4 billion years.
Now, look to the top right to spot a galaxy that is not at this party. This edge-on galaxy, cataloged PGC 1237172, is 100 million light-years closer to Earth. It’s also quite young, teeming with new, blue stars.
Want one more party trick? Switch to Webb’s mid-infrared-only image to see PGC 1237172 practically disappear. Mid-infrared light largely captures cooler, older stars and an incredible amount of dust. Since the galaxy’s stellar population is so young, it “vanishes” in mid-infrared light.
Image B: Interacting Galaxies Arp 142 (MIRI Only)
NASA’s James Webb Space Telescope’s mid-infrared view of interacting galaxies Arp 142 seems to sing in primary colors. The Egg shows up as a tiny, teal-colored oval, because it is made up of old stars and has lost or used up most of its gas and dust. At right, the Penguin’s star-forming regions are represented in pink and purple, and contain smoke-like material known as polycyclic aromatic hydrocarbons. Also take a moment to scan the background. Webb’s image is overflowing with distant galaxies. Some take spiral and oval shapes, like those threaded throughout the Penguin’s “tail feathers,” while others scattered throughout are shapeless dots. This is a testament to the sensitivity and resolution of the telescope’s infrared instruments. (Compare Webb’s view to the 2018 observation that combines infrared light from NASA’s retired Spitzer Space Telescope and near-infrared and visible light from NASA’s Hubble Space Telescope.) Even though these observations only took a few hours, Webb revealed far more distant, redder, and dustier galaxies than previous telescopes – one more reason to expect Webb to continue to expand our understanding of everything in the universe.
Want more? Take a tour to the image, “fly through” it in a visualization, and compare Webb’s image to the Hubble Space Telescope’s.
Arp 142 lies 326 million light-years from Earth in the constellation Hydra.
Video: Tour the Arp 142 Image
Video tour transcript
Credit: NASA, ESA, CSA, STScI, Danielle Kirshenblat (STScI) Video: Arp 142 Visualization
Credit: NASA, ESA, CSA, Ralf Crawford (STScI), Joseph DePasquale (STScI), Christian Nieves (STScI), Joseph Olmsted (STScI), Alyssa Pagan (STScI), Frank Summers (STScI), Greg Bacon (STScI) Image C: Compare Hubble/Webb
Image Before/After The James Webb Space Telescope is the world’s premier space science observatory. Webb is solving mysteries in our solar system, looking beyond to distant worlds around other stars, and probing 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 CSA (Canadian Space Agency).
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Media Contacts
Laura Betz – laura.e.betz@nasa.gov, Rob Gutro – rob.gutro@nasa.gov
NASA’s Goddard Space Flight Center, Greenbelt, Md.
Claire Blome – cblome@stsci.edu Christine Pulliam – cpulliam@stsci.edu
Space Telescope Science Institute, Baltimore, Md.
Related Information
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