Members Can Post Anonymously On This Site
US Navy Chief Yeoman saw secret documents of retrieved alien bodies dead and ALIVE!
-
Similar Topics
-
By NASA
X-ray: NASA/CXC/Technion/N. Keshet et al.; Illustration: NASA/CXC/SAO/M. Weiss People often think about archaeology happening deep in jungles or inside ancient pyramids. However, a team of astronomers has shown that they can use stars and the remains they leave behind to conduct a special kind of archaeology in space.
Mining data from NASA’s Chandra X-ray Observatory, the team of astronomers studied the relics that one star left behind after it exploded. This “supernova archaeology” uncovered important clues about a star that self-destructed – probably more than a million years ago.
Today, the system called GRO J1655-40 contains a black hole with nearly seven times the mass of the Sun and a star with about half as much mass. However, this was not always the case.
Originally GRO J1655-40 had two shining stars. The more massive of the two stars, however, burned through all of its nuclear fuel and then exploded in what astronomers call a supernova. The debris from the destroyed star then rained onto the companion star in orbit around it, as shown in the artist’s concept.
This artist’s impression shows the effects of the collapse and supernova explosion of a massive star. A black hole (right) was formed in the collapse and debris from the supernova explosion is raining down onto a companion star (left), polluting its atmosphere.CXC/SAO/M. Weiss With its outer layers expelled, including some striking its neighbor, the rest of the exploded star collapsed onto itself and formed the black hole that exists today. The separation between the black hole and its companion would have shrunk over time because of energy being lost from the system, mainly through the production of gravitational waves. When the separation became small enough, the black hole, with its strong gravitational pull, began pulling matter from its companion, wrenching back some of the material its exploded parent star originally deposited.
While most of this material sank into the black hole, a small amount of it fell into a disk that orbits around the black hole. Through the effects of powerful magnetic fields and friction in the disk, material is being sent out into interstellar space in the form of powerful winds.
This is where the X-ray archaeological hunt enters the story. Astronomers used Chandra to observe the GRO J1655-40 system in 2005 when it was particularly bright in X-rays. Chandra detected signatures of individual elements found in the black hole’s winds by getting detailed spectra – giving X-ray brightness at different wavelengths – embedded in the X-ray light. Some of these elements are highlighted in the spectrum shown in the inset.
The team of astronomers digging through the Chandra data were able to reconstruct key physical characteristics of the star that exploded from the clues imprinted in the X-ray light by comparing the spectra with computer models of stars that explode as supernovae. They discovered that, based on the amounts of 18 different elements in the wind, the long-gone star destroyed in the supernova was about 25 times the mass of the Sun, and was much richer in elements heavier than helium in comparison with the Sun.
This analysis paves the way for more supernova archaeology studies using other outbursts of double star systems.
A paper describing these results titled “Supernova Archaeology with X-Ray Binary Winds: The Case of GRO J1655−40” was published in The Astrophysical Journal in May 2024. The authors of this study are Noa Keshet (Technion — Israel Institute of Technology), Ehud Behar (Technion), and Timothy Kallman (NASA’s Goddard Space Flight Center).
NASA’s Marshall Space Flight Center in Huntsville, Alabama, manages the Chandra program. The Smithsonian Astrophysical Observatory’s Chandra X-ray Center controls science operations from Cambridge, Massachusetts, and flight operations from Burlington, Massachusetts.
Read more from NASA’s Chandra X-ray Observatory.
Learn more about the Chandra X-ray Observatory and its mission here:
https://www.nasa.gov/chandra
https://chandra.si.edu
Visual Description
This release features an artist’s rendering of a supernova explosion, inset with a spectrum graph.
The artist’s illustration features a star and a black hole in a system called GRO J1655-40. Here, the black hole is represented by a black sphere to our upper right of center. The star is represented by a bright yellow sphere to our lower left of center. In this illustration, the artist captures the immensely powerful supernova as a black hole is created from the collapse of a massive star, with an intense burst of blurred beams radiating from the black sphere. The blurred beams of red, orange, and yellow light show debris from the supernova streaking across the entire image in rippling waves. These beams rain debris on the bright yellow star.
When astronomers used the Chandra X-ray Observatory to observe the system in 2005, they detected signatures of individual elements embedded in the X-ray light. Some of those elements are highlighted in the spectrum graph shown in the inset, positioned at our upper lefthand corner.
The graph’s vertical axis, on our left, indicates X-ray brightness from 0.0 up to 0.7 in intensity units. The horizontal axis, at the bottom of the graph, indicates Wavelength from 6 to 12 in units of Angstroms. On the graph, a tight zigzagging line begins near the top of the vertical axis, and slopes down toward the far end of the horizontal axis. The sharp dips show wavelengths where the light has been absorbed by different elements, decreasing the X-ray brightness. Some of the elements causing these dips have been labeled, including Silicon, Magnesium, Iron, Nickel, Neon, and Cobalt.
News Media Contact
Megan Watzke
Chandra X-ray Center
Cambridge, Mass.
617-496-7998
mwatzke@cfa.harvard.edu
Lane Figueroa
Marshall Space Flight Center, Huntsville, Alabama
256-544-0034
lane.e.figueroa@nasa.gov
View the full article
-
By Space Force
Cecily Odom takes the helm as senior advisor at the Enterprise IT Programming & Financial Management senior advisor.
View the full article
-
By USH
In the depths of the ocean, where countless strange fish and creatures dwell in perpetual darkness, they remain unseen, unless unexpectedly caught. This was the case during an expedition by a Russian deep-sea fisherman, who was stunned when he reeled in a bizarre creature that strikingly resembled an alien’s head.
The eerie catch was made by Roman Fedortsov during an expedition in the northern Pacific Ocean.
The fisherman shared the video of the strange creature with his followers, with viewers comparing the bulbous fish to an extraterrestrial or even Krang, the villain from Teenage Mutant Ninja Turtles.
Fisherman Fedortsov has previously made headlines thanks to other weird and wonderful catches which you can view at Dailymail.
Despite its eerie appearance, the fish was not an alien or a mutant but rather a species known as the smooth lumpsucker, a deep-sea fish recognized for its distinctive, gelatinous look.
View the full article
-
By NASA
u0022Every project I have worked has been unique, whether it be a sounding rocket, scientific balloon, or aircraft mission,u0022 said Wallops Flight Facility News Chief Keith Koehler, looking back on his 41 years at NASA. u0022The projects are numerous and great people are involved.u0022NASA/Aubrey Gemignani Name: Keith Koehler
Title: News Chief
Formal Job Classification: Public Affairs Specialist
Organization: Office of Communications, Wallops Flight Facility, Goddard Space Flight Center (Code 130.4)
What do you do and what is most interesting about your role here at Goddard? How do you help support Goddard’s mission?
As news chief, I manage media relations with local, regional, national, and international media. I also write news releases and web features, and I conduct interviews to bring the exciting activities at NASA’s Wallops Flight Facility on Virginia’s Eastern Shore to the public.
What is your educational background?
I have a B.A. in journalism from Murray State University in Kentucky and an M.B.A. from Bellarmine University in Kentucky.
How did you come to work for NASA?
In 1978, while I was at Murray, I joined the NASA Langley Research Center’s Public Affairs Office (now the Office of Communications), in Virginia, as a cooperative education student, a type of internship. In 1984, I joined Wallops as the manager of the Visitor Center while I was working on my master’s. In 1987, I returned to Bellarmine full time to complete the last semester for my master’s. Later that year, after graduating, I returned to the Wallops Visitor Center. In 1990, I became the lead of the Wallops Public Affairs Office, where I have remained most of my career.
Why did you spend almost your entire career at Wallops’ Office of Communications?
When I first came to Wallops, I fell in love with the area. I grew up in the city and I love this rural area. I enjoy working with the people and the scientists from all over the world who come here to do research projects. Wallops projects usually run six months to about two years, so it’s very fast-paced with a lot of activity in many different areas.
I also met my wife Lisa, a native of the area, while at Wallops.
What are some of the most interesting projects you have worked on?
Northrop Grumman’s Antares program, which launches from Wallops, is interesting because of the positive impact the launches have on the community and their importance in getting supplies to the International Space Station. Wallops began in 1945 as a launch facility. Since coming to Wallops in 1984, I have seen it become a world-class launch facility for much larger rockets.
Every project I have worked has been unique, whether it be a sounding rocket, scientific balloon, or aircraft mission. The projects are numerous and great people are involved.
What I have enjoyed most throughout my career is the people. Our people want to share what they are doing with the public.
u0022What makes a good science communicator is the ability to listen,u0022 said Wallops news chief Keith Koehler. u0022You need to listen closely to what is being told to you from the mission support staff, such as a scientists, engineers, or technicians. Then you must be able to take that information and put it in a format that the public can understand.u0022Courtesy of Keith Koehler What do you want to be your legacy?
I would like to be remembered as someone with integrity who was able to bring the message of what we do at Wallops to the public and as someone who supported our educational programs through the development and support of hands-on programs and support of internships.
What advice would you give to someone starting out in science communications?
You need to have a passion for learning and be curious.
We pass on new findings to the public and everything is always changing. You must enjoy communicating with the scientists and engineers and passing on that information to the public in a way they can understand the technical complexities of the science and engineering.
What makes a good science communicator?
What makes a good science communicator is the ability to listen. You need to listen closely to what is being told to you from the mission support staff, such as a scientists, engineers, or technicians. Then you must be able to take that information and put it in a format that the public can understand. You also must be able to listen to the public and understand what they are asking and interested in hearing.
What was your favorite campaign?
That is hard to say. With more than 41 years supporting NASA, the missions and field campaigns have been numerous. Field campaigns took me to Alaska, New Mexico, California, Hawaii, in the air over the mid-Atlantic states, and Puerto Rico.
How has Wallops changed over the years?
In some ways, Wallops has stayed the same, but it also has changed. Wallops has always had a can-do attitude. Mission personnel know the project goals and work toward those goals. Historically, the work has focused on suborbital projects using sounding rockets, scientific balloons, and science aircraft.
Recently, there has been an increase in working with small satellites – project management, development, testing and tracking. In addition, Wallops has greatly expanded its support of commercial launch activities. In 1995, Virginia located the Mid-Atlantic Regional Spaceport at Wallops, which has brought an increase in the launch of orbital rockets. I was part of the core group involved in the birth of the spaceport.
What do you enjoy most about living near Wallops?
The area is quiet, slower paced. The beaches are nice. We are close enough for a day trip to Washington, D.C., but we can live surrounded by nature.
After you retire at the end of this year, what are your plans?
I want to travel nationally and internationally with my wife Lisa. I love vegetable gardening. I also want to spend time with my grandchild. I may do some part-time teaching. I hope to do volunteer work, but have not yet decided exactly what or where.
What is your “six-word memoir”? A six-word memoir describes something in just six words.
Integrity, faithful, patient, inquisitive, caring, trustworthy.
By Elizabeth M. Jarrell
NASA’s Goddard Space Flight Center, Greenbelt, Md.
Conversations With Goddard is a collection of question and answer profiles highlighting the breadth and depth of NASA’s Goddard Space Flight Center’s talented and diverse workforce. The Conversations have been published twice a month on average since May 2011. Read past editions on Goddard’s “Our People” webpage. Conversations With Goddard is a collection of Q&A profiles highlighting the breadth and depth of NASA’s Goddard Space Flight Center’s talented and diverse workforce. The Conversations have been published twice a month on average since May 2011. Read past editions on Goddard’s “Our People” webpage.
Share
Details
Last Updated Feb 10, 2025 Related Terms
Goddard Space Flight Center People of Goddard Wallops Flight Facility Keep Exploring Discover More Topics From NASA
Missions
Humans in Space
Climate Change
Solar System
View the full article
-
By NASA
Pandora, NASA’s newest exoplanet mission, is one step closer to launch with the completion of the spacecraft bus, which provides the structure, power, and other systems that will enable the mission to carry out its work.
Watch to learn more about NASA’s Pandora mission, which will revolutionize the study of exoplanet atmospheres.
NASA’s Goddard Space Flight Center “This is a huge milestone for us and keeps us on track for a launch in the fall,” said Elisa Quintana, Pandora’s principal investigator at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. “The bus holds our instruments and handles navigation, data acquisition, and communication with Earth — it’s the brains of the spacecraft.”
Pandora, a small satellite, will provide in-depth study of at least 20 known planets orbiting distant stars in order to determine the composition of their atmospheres — especially the presence of hazes, clouds, and water. This data will establish a firm foundation for interpreting measurements by NASA’s James Webb Space Telescope and future missions that will search for habitable worlds.
Pandora’s spacecraft bus was photographed Jan. 10 within a thermal-vacuum testing chamber at Blue Canyon Technologies in Lafayette, Colorado. The bus provides the structure, power, and other systems that will enable the mission to help astronomers better separate stellar features from the spectra of transiting planets. NASA/Weston Maughan, BCT “We see the presence of water as a critical aspect of habitability because water is essential to life as we know it,” said Goddard’s Ben Hord, a NASA Postdoctoral Program Fellow who discussed the mission at the 245th meeting of the American Astronomical Society in National Harbor, Maryland. “The problem with confirming its presence in exoplanet atmospheres is that variations in light from the host star can mask or mimic the signal of water. Separating these sources is where Pandora will shine.”
Funded by NASA’s Astrophysics Pioneers program for small, ambitious missions, Pandora is a joint effort between Lawrence Livermore National Laboratory in California and NASA Goddard.
“Pandora’s near-infrared detector is actually a spare developed for the Webb telescope, which right now is the observatory most sensitive to exoplanet atmospheres,” Hord added. “In turn, our observations will improve Webb’s ability to separate the star’s signals from those of the planet’s atmosphere, enabling Webb to make more precise atmospheric measurements.”
Astronomers can sample an exoplanet’s atmosphere when it passes in front of its star as seen from our perspective, an event called a transit. Part of the star’s light skims the atmosphere before making its way to us. This interaction allows the light to interact with atmospheric substances, and their chemical fingerprints — dips in brightness at characteristic wavelengths — become imprinted in the light.
But our telescopes see light from the entire star as well, not just what’s grazing the planet. Stellar surfaces aren’t uniform. They sport hotter, unusually bright regions called faculae and cooler, darker regions similar to sunspots, both of which grow, shrink, and change position as the star rotates.
An artist’s concept of the Pandora mission, seen here without the thermal blanketing that will protect the spacecraft, observing a star and its transiting exoplanet. NASA’s Goddard Space Flight Center/Conceptual Image Lab Using a novel all-aluminum, 45-centimeter-wide (17 inches) telescope, jointly developed by Livermore and Corning Specialty Materials in Keene, New Hampshire, Pandora’s detectors will capture each star’s visible brightness and near-infrared spectrum at the same time, while also obtaining the transiting planet’s near-infrared spectrum. This combined data will enable the science team to determine the properties of stellar surfaces and cleanly separate star and planetary signals.
The observing strategy takes advantage of the mission’s ability to continuously observe its targets for extended periods, something flagship missions like Webb, which are in high demand, cannot regularly do.
Over the course of its year-long prime mission, Pandora will observe at least 20 exoplanets 10 times, with each stare lasting a total of 24 hours. Each observation will include a transit, which is when the mission will capture the planet’s spectrum.
Pandora is led by NASA’s Goddard Space Flight Center. Lawrence Livermore National Laboratory provides the mission’s project management and engineering. Pandora’s telescope was manufactured by Corning and developed collaboratively with Livermore, which also developed the imaging detector assemblies, the mission’s control electronics, and all supporting thermal and mechanical subsystems. The infrared sensor was provided by NASA Goddard. Blue Canyon Technologies provided the bus and is performing spacecraft assembly, integration, and environmental testing. NASA’s Ames Research Center in California’s Silicon Valley will perform the mission’s data processing. Pandora’s mission operations center is located at the University of Arizona, and a host of additional universities support the science team.
Download high-resolution video and images from NASA’s Scientific Visualization Studio
By Francis Reddy
NASA’s Goddard Space Flight Center, Greenbelt, Md.
Media Contact:
Claire Andreoli
301-286-1940
claire.andreoli@nasa.gov
NASA’s Goddard Space Flight Center, Greenbelt, Md.
Facebook logo @NASAUniverse @NASAUniverse Instagram logo @NASAUniverse Share
Details
Last Updated Jan 16, 2025 Related Terms
Astrophysics Astrophysics Division Exoplanet Atmosphere Exoplanet Exploration Program Exoplanet Science Exoplanet Transits Exoplanets Goddard Space Flight Center Studying Exoplanets The Universe View the full article
-
-
Check out these Videos
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.