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Chandra X-ray Observatory

Chandra X-ray Observatory Facts For Kids

The Chandra X-ray Observatory is a high-tech space telescope launched by NASA in 1999 to study X-ray emissions from hot and energetic celestial phenomena.

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Chandra X-ray Observatory
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Introduction

The Chandra X-ray Observatory is a super cool telescope that helps us see the universe! 🚀Launched by NASA on July 23, 1999, it travels high above Earth in space. It’s named after a famous scientist, Subrahmanyan Chandrasekhar, who studied stars. 🌟Chandra can "see" X-rays, which are special rays from really hot objects like stars and black holes. By studying these rays, scientists learn more about how the universe works! Chandra orbits Earth every 65 hours and can look at many things, helping us uncover the mysteries of space.

Images of Chandra X-ray Observatory

Space Shuttle Columbia, STS-93 launches in 1999

Space Shuttle Columbia, STS-93 launches in 1999

Crew of STS-93 with a scale model

Crew of STS-93 with a scale model

CXO image of the brown dwarf TWA 5B

CXO image of the brown dwarf TWA 5B

Assembly of the telescope

Assembly of the telescope

The main mirror of AXAF (Chandra)

The main mirror of AXAF (Chandra)

HRC flight unit of Chandra

HRC flight unit of Chandra

Labeled diagram of CXO

Labeled diagram of CXO

Animation of Chandra X-ray Observatory's orbit around Earth from August 7, 1999.mw-parser-output .legend{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .legend-color{display:inline-block;min-width:1.25em;height:1.25em;line-height:1.25;margin:1px 0;text-align:center;border:1px solid black;background-color:transparent;color:black}.mw-parser-output .legend-text{} Chandra · EarthImage by Phoenix7777, licensed under Creative Commons Attribution-Share Alike 4.0

Animation of Chandra X-ray Observatory's orbit around Earth from August 7, 1999.mw-parser-output .legend{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .legend-color{display:inline-block;min-width:1.25em;height:1.25em;line-height:1.25;margin:1px 0;text-align:center;border:1px solid black;background-color:transparent;color:black}.mw-parser-output .legend-text{} Chandra · Earth

PIA21061: X-Rays from Pluto http://photojournal.jpl.nasa.gov/catalog/PIA21061 The first detection of Pluto in X-rays has been made using NASA's Chandra X-ray Observatory in conjunction with observations from NASA's New Horizons spacecraft. As New Horizons approached Pluto in late 2014 and then flew by the planet during the summer of 2015, Chandra obtained data during four separate observations. During each observation, Chandra detected low-energy X-rays from the small planet. The main panel in this graphic is an optical image taken from New Horizons on its approach to Pluto, while the inset shows an image of Pluto in X-rays from Chandra. There is a significant difference in scale between the optical and X-ray images. New Horizons made a close flyby of Pluto but Chandra is located near the Earth, so the level of detail visible in the two images is very different. The Chandra image is 180,000 miles across at the distance of Pluto, but the planet is only 1,500 miles across. Pluto is detected in the X-ray image as a point source, showing the sharpest level of detail available for Chandra or any other X-ray observatory. This means that details over scales that are smaller than the X-ray source cannot be seen here. Detecting X-rays from Pluto is a somewhat surprising result given that Pluto - a cold, rocky world without a magnetic field - has no natural mechanism for emitting X-rays. However, scientists knew from previous observations of comets that the interaction between the gases surrounding such planetary bodies and the solar wind - the constant streams of charged particles from the sun that speed throughout the solar system -- can create X-rays. The researchers were particularly interested in learning more about the interaction between the gases in Pluto's atmosphere and the solar wind. The New Horizon spacecraft carries an instrument designed to measure that activity up-close -- Solar Wind Around Pluto (SWAP) -- and scientists examined that data and proposed that Pluto contains a very mild, close-in bowshock, where the solar wind first "meets" Pluto (similar to a shock wave that forms ahead of a supersonic aircraft) and a small wake or tail behind the planet. The immediate mystery is that Chandra's readings on the brightness of the X-rays are much higher than expected from the solar wind interacting with Pluto's atmosphere. The Chandra detection is also surprising since New Horizons discovered Pluto's atmosphere was much more stable than the rapidly escaping, "comet-like" atmosphere that many scientists expected before the spacecraft flew past in July 2015. In fact, New Horizons found that Pluto's interaction with the solar wind is much more like the interaction of the solar wind with Mars, than with a comet. While Pluto is releasing enough gas from its atmosphere to make the observed X-rays, there isn't enough solar wind flowing directly at Pluto at its great distance from the Sun to make them according to certain theoretical models. There are several suggested possibilities for the enhanced X-ray emission from Pluto. These include a much wider and longer tail of gases trailing Pluto than New Horizons detected using its SWAP instrument. Because Pluto is so small compared to the size of a Chandra point source, scientists may be unable to detect such a tail in X-rays. Other possibilities are that interplanetary magnetic fields are focusing more particles than expected from the solar wind into the region around Pluto, or the low density of the solar wind in the outer solar system at the distance of Pluto could allow for the formation of a doughnut, or torus, of neutral gas centered around Pluto's orbit. It will take deeper and higher resolution images of X-rays from Pluto's environment than we currently have from Chandra to distinguish between these possibilities. The Johns Hopkins University Applied Physics Laboratory in Laurel, Maryland, designed, built, and operates the New Horizons spacecraft, and manages the mission for NASA's Science Mission Directorate. The Southwest Research Institute, based in San Antonio, leads the science team, payload operations and encounter science planning. New Horizons is part of the New Frontiers Program managed by NASA's Marshall Space Flight Center in Huntsville, Alabama.

PIA21061: X-Rays from Pluto http://photojournal.jpl.nasa.gov/catalog/PIA21061 The first detection of Pluto in X-rays has been made using NASA's Chandra X-ray Observatory in conjunction with observations from NASA's New Horizons spacecraft. As New Horizons approached Pluto in late 2014 and then flew by the planet during the summer of 2015, Chandra obtained data during four separate observations. During each observation, Chandra detected low-energy X-rays from the small planet. The main panel in this graphic is an optical image taken from New Horizons on its approach to Pluto, while the inset shows an image of Pluto in X-rays from Chandra. There is a significant difference in scale between the optical and X-ray images. New Horizons made a close flyby of Pluto but Chandra is located near the Earth, so the level of detail visible in the two images is very different. The Chandra image is 180,000 miles across at the distance of Pluto, but the planet is only 1,500 miles across. Pluto is detected in the X-ray image as a point source, showing the sharpest level of detail available for Chandra or any other X-ray observatory. This means that details over scales that are smaller than the X-ray source cannot be seen here. Detecting X-rays from Pluto is a somewhat surprising result given that Pluto - a cold, rocky world without a magnetic field - has no natural mechanism for emitting X-rays. However, scientists knew from previous observations of comets that the interaction between the gases surrounding such planetary bodies and the solar wind - the constant streams of charged particles from the sun that speed throughout the solar system -- can create X-rays. The researchers were particularly interested in learning more about the interaction between the gases in Pluto's atmosphere and the solar wind. The New Horizon spacecraft carries an instrument designed to measure that activity up-close -- Solar Wind Around Pluto (SWAP) -- and scientists examined that data and proposed that Pluto contains a very mild, close-in bowshock, where the solar wind first "meets" Pluto (similar to a shock wave that forms ahead of a supersonic aircraft) and a small wake or tail behind the planet. The immediate mystery is that Chandra's readings on the brightness of the X-rays are much higher than expected from the solar wind interacting with Pluto's atmosphere. The Chandra detection is also surprising since New Horizons discovered Pluto's atmosphere was much more stable than the rapidly escaping, "comet-like" atmosphere that many scientists expected before the spacecraft flew past in July 2015. In fact, New Horizons found that Pluto's interaction with the solar wind is much more like the interaction of the solar wind with Mars, than with a comet. While Pluto is releasing enough gas from its atmosphere to make the observed X-rays, there isn't enough solar wind flowing directly at Pluto at its great distance from the Sun to make them according to certain theoretical models. There are several suggested possibilities for the enhanced X-ray emission from Pluto. These include a much wider and longer tail of gases trailing Pluto than New Horizons detected using its SWAP instrument. Because Pluto is so small compared to the size of a Chandra point source, scientists may be unable to detect such a tail in X-rays. Other possibilities are that interplanetary magnetic fields are focusing more particles than expected from the solar wind into the region around Pluto, or the low density of the solar wind in the outer solar system at the distance of Pluto could allow for the formation of a doughnut, or torus, of neutral gas centered around Pluto's orbit. It will take deeper and higher resolution images of X-rays from Pluto's environment than we currently have from Chandra to distinguish between these possibilities. The Johns Hopkins University Applied Physics Laboratory in Laurel, Maryland, designed, built, and operates the New Horizons spacecraft, and manages the mission for NASA's Science Mission Directorate. The Southwest Research Institute, based in San Antonio, leads the science team, payload operations and encounter science planning. New Horizons is part of the New Frontiers Program managed by NASA's Marshall Space Flight Center in Huntsville, Alabama.

Labeled diagram of CXO

Labeled diagram of CXO

Space Shuttle Columbia, STS-93 launches in 1999

Space Shuttle Columbia, STS-93 launches in 1999

Crew of STS-93 with a scale model

Crew of STS-93 with a scale model

CXO image of the brown dwarf TWA 5B

CXO image of the brown dwarf TWA 5B

Assembly of the telescope

Assembly of the telescope

The main mirror of AXAF (Chandra)

The main mirror of AXAF (Chandra)

HRC flight unit of Chandra

HRC flight unit of Chandra

Animation of Chandra X-ray Observatory's orbit around Earth from August 7, 1999.mw-parser-output .legend{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .legend-color{display:inline-block;min-width:1.25em;height:1.25em;line-height:1.25;margin:1px 0;text-align:center;border:1px solid black;background-color:transparent;color:black}.mw-parser-output .legend-text{} Chandra · EarthImage by Phoenix7777, licensed under Creative Commons Attribution-Share Alike 4.0

Animation of Chandra X-ray Observatory's orbit around Earth from August 7, 1999.mw-parser-output .legend{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .legend-color{display:inline-block;min-width:1.25em;height:1.25em;line-height:1.25;margin:1px 0;text-align:center;border:1px solid black;background-color:transparent;color:black}.mw-parser-output .legend-text{} Chandra · Earth

PIA21061: X-Rays from Pluto http://photojournal.jpl.nasa.gov/catalog/PIA21061 The first detection of Pluto in X-rays has been made using NASA's Chandra X-ray Observatory in conjunction with observations from NASA's New Horizons spacecraft. As New Horizons approached Pluto in late 2014 and then flew by the planet during the summer of 2015, Chandra obtained data during four separate observations. During each observation, Chandra detected low-energy X-rays from the small planet. The main panel in this graphic is an optical image taken from New Horizons on its approach to Pluto, while the inset shows an image of Pluto in X-rays from Chandra. There is a significant difference in scale between the optical and X-ray images. New Horizons made a close flyby of Pluto but Chandra is located near the Earth, so the level of detail visible in the two images is very different. The Chandra image is 180,000 miles across at the distance of Pluto, but the planet is only 1,500 miles across. Pluto is detected in the X-ray image as a point source, showing the sharpest level of detail available for Chandra or any other X-ray observatory. This means that details over scales that are smaller than the X-ray source cannot be seen here. Detecting X-rays from Pluto is a somewhat surprising result given that Pluto - a cold, rocky world without a magnetic field - has no natural mechanism for emitting X-rays. However, scientists knew from previous observations of comets that the interaction between the gases surrounding such planetary bodies and the solar wind - the constant streams of charged particles from the sun that speed throughout the solar system -- can create X-rays. The researchers were particularly interested in learning more about the interaction between the gases in Pluto's atmosphere and the solar wind. The New Horizon spacecraft carries an instrument designed to measure that activity up-close -- Solar Wind Around Pluto (SWAP) -- and scientists examined that data and proposed that Pluto contains a very mild, close-in bowshock, where the solar wind first "meets" Pluto (similar to a shock wave that forms ahead of a supersonic aircraft) and a small wake or tail behind the planet. The immediate mystery is that Chandra's readings on the brightness of the X-rays are much higher than expected from the solar wind interacting with Pluto's atmosphere. The Chandra detection is also surprising since New Horizons discovered Pluto's atmosphere was much more stable than the rapidly escaping, "comet-like" atmosphere that many scientists expected before the spacecraft flew past in July 2015. In fact, New Horizons found that Pluto's interaction with the solar wind is much more like the interaction of the solar wind with Mars, than with a comet. While Pluto is releasing enough gas from its atmosphere to make the observed X-rays, there isn't enough solar wind flowing directly at Pluto at its great distance from the Sun to make them according to certain theoretical models. There are several suggested possibilities for the enhanced X-ray emission from Pluto. These include a much wider and longer tail of gases trailing Pluto than New Horizons detected using its SWAP instrument. Because Pluto is so small compared to the size of a Chandra point source, scientists may be unable to detect such a tail in X-rays. Other possibilities are that interplanetary magnetic fields are focusing more particles than expected from the solar wind into the region around Pluto, or the low density of the solar wind in the outer solar system at the distance of Pluto could allow for the formation of a doughnut, or torus, of neutral gas centered around Pluto's orbit. It will take deeper and higher resolution images of X-rays from Pluto's environment than we currently have from Chandra to distinguish between these possibilities. The Johns Hopkins University Applied Physics Laboratory in Laurel, Maryland, designed, built, and operates the New Horizons spacecraft, and manages the mission for NASA's Science Mission Directorate. The Southwest Research Institute, based in San Antonio, leads the science team, payload operations and encounter science planning. New Horizons is part of the New Frontiers Program managed by NASA's Marshall Space Flight Center in Huntsville, Alabama.

PIA21061: X-Rays from Pluto http://photojournal.jpl.nasa.gov/catalog/PIA21061 The first detection of Pluto in X-rays has been made using NASA's Chandra X-ray Observatory in conjunction with observations from NASA's New Horizons spacecraft. As New Horizons approached Pluto in late 2014 and then flew by the planet during the summer of 2015, Chandra obtained data during four separate observations. During each observation, Chandra detected low-energy X-rays from the small planet. The main panel in this graphic is an optical image taken from New Horizons on its approach to Pluto, while the inset shows an image of Pluto in X-rays from Chandra. There is a significant difference in scale between the optical and X-ray images. New Horizons made a close flyby of Pluto but Chandra is located near the Earth, so the level of detail visible in the two images is very different. The Chandra image is 180,000 miles across at the distance of Pluto, but the planet is only 1,500 miles across. Pluto is detected in the X-ray image as a point source, showing the sharpest level of detail available for Chandra or any other X-ray observatory. This means that details over scales that are smaller than the X-ray source cannot be seen here. Detecting X-rays from Pluto is a somewhat surprising result given that Pluto - a cold, rocky world without a magnetic field - has no natural mechanism for emitting X-rays. However, scientists knew from previous observations of comets that the interaction between the gases surrounding such planetary bodies and the solar wind - the constant streams of charged particles from the sun that speed throughout the solar system -- can create X-rays. The researchers were particularly interested in learning more about the interaction between the gases in Pluto's atmosphere and the solar wind. The New Horizon spacecraft carries an instrument designed to measure that activity up-close -- Solar Wind Around Pluto (SWAP) -- and scientists examined that data and proposed that Pluto contains a very mild, close-in bowshock, where the solar wind first "meets" Pluto (similar to a shock wave that forms ahead of a supersonic aircraft) and a small wake or tail behind the planet. The immediate mystery is that Chandra's readings on the brightness of the X-rays are much higher than expected from the solar wind interacting with Pluto's atmosphere. The Chandra detection is also surprising since New Horizons discovered Pluto's atmosphere was much more stable than the rapidly escaping, "comet-like" atmosphere that many scientists expected before the spacecraft flew past in July 2015. In fact, New Horizons found that Pluto's interaction with the solar wind is much more like the interaction of the solar wind with Mars, than with a comet. While Pluto is releasing enough gas from its atmosphere to make the observed X-rays, there isn't enough solar wind flowing directly at Pluto at its great distance from the Sun to make them according to certain theoretical models. There are several suggested possibilities for the enhanced X-ray emission from Pluto. These include a much wider and longer tail of gases trailing Pluto than New Horizons detected using its SWAP instrument. Because Pluto is so small compared to the size of a Chandra point source, scientists may be unable to detect such a tail in X-rays. Other possibilities are that interplanetary magnetic fields are focusing more particles than expected from the solar wind into the region around Pluto, or the low density of the solar wind in the outer solar system at the distance of Pluto could allow for the formation of a doughnut, or torus, of neutral gas centered around Pluto's orbit. It will take deeper and higher resolution images of X-rays from Pluto's environment than we currently have from Chandra to distinguish between these possibilities. The Johns Hopkins University Applied Physics Laboratory in Laurel, Maryland, designed, built, and operates the New Horizons spacecraft, and manages the mission for NASA's Science Mission Directorate. The Southwest Research Institute, based in San Antonio, leads the science team, payload operations and encounter science planning. New Horizons is part of the New Frontiers Program managed by NASA's Marshall Space Flight Center in Huntsville, Alabama.

Future Directions

What’s next for Chandra? 🚀Scientists plan to keep using it for many more years! They want to study even more complex questions about dark matter, black holes, and how galaxies change over time. As technology improves, they hope to collect even more detailed information. Chandra's findings will help future missions too! 🌟New telescopes being made will work alongside Chandra, allowing researchers to explore different wavelengths of light. With its continued operation, Chandra could help unlock some of the biggest mysteries the universe has to offer!

Mission Objectives

The Chandra X-ray Observatory has some important jobs! Its main goal is to study X-rays from space and learn about things like black holes, neutron stars, and supernova remnants. 🎇Chandra helps scientists answer questions like, "How do stars explode?" and "What are the processes happening near black holes?" It also explores the mysterious hot gas found between galaxies. By collecting this information, Chandra helps us understand how the universe began and how it changes over time! ✨Its mission is essential for gathering knowledge about our awesome universe!

Impact On Astronomy

Chandra has changed astronomy in amazing ways! 🌌It has opened our eyes to many new ideas about the universe. Before Chandra, scientists couldn’t study X-rays from space easily. Now, thanks to this observatory, we know more about black holes, supernovae, and other cosmic wonders. It has helped prove that black holes exist and helped spot the light from early galaxies! These discoveries inspire new missions and technologies, changing the way we think about space! Chandra has truly been a game-changer in our quest to understand the universe!

Educational Outreach

Chandra loves teaching about the universe! 🎓The observatory shares its discoveries with schools, museums, and community events. It has exciting activities and resources for students to learn about astronomy! Chandra even offers programs for teachers to enhance their lessons using space science. Students can explore a website where they see real images from the telescope and learn fun facts. They can also participate in hands-on activities and experiments to spark their interest in space! Chandra hopes to inspire the next generation of astronomers and scientists! 🌌✨

Notable Observations

Chandra has a list of spectacular findings that astound scientists! 🌠One of its first major discoveries was the beautiful X-ray image of an exploded star called RCW 86. It helped scientists understand the physics behind supernova explosions! Chandra also observed the incredible galactic cluster known as the Perseus Cluster, revealing the presence of hot gas and dark matter! Additionally, it captured stunning images of the Crab Nebula and helped spot the most distant galaxy ever seen! These observations underline Chandra's significance in astronomy and its role in expanding our cosmic knowledge!

Scientific Discoveries

Thanks to Chandra, scientists have made some incredible discoveries! 🔭One cool find was the discovery of a powerful black hole at the center of our Milky Way galaxy named Sagittarius A*. 💫They also found hot gas in galaxy clusters, showing that they contain a lot of hidden energy! Chandra helped us understand supernovas, which are huge star explosions, by capturing images of their remains. Its research has proved that dark matter and dark energy exist, adding to the universe's mysteries! Each discovery helps scientists learn more about how everything in space connects!

History And Development

Chandra was first called the Advanced X-ray Astrophysics Facility! It was built to learn about amazing things in the universe, like black holes, supernovae, and galaxies. The telescope was launched aboard the Space Shuttle Columbia during STS-93. The mission was led by astronaut Eileen Collins, the first woman to command a shuttle! 🌌Chandra was designed by NASA with help from many scientists and engineers at organizations like the Massachusetts Institute of Technology (MIT). This project took many years of hard work, but on that July day in 1999, it finally flew into space!

Instruments And Technology

Chandra is packed with advanced instruments that help it see X-rays! 🛠️ It has a primary mirror that’s huge, around 2.4 meters wide, which collects X-ray light from space. Chandra uses special detectors called Charge-Coupled Devices (CCDs) to take pictures of X-ray sources. These detectors are similar to the ones in cameras but designed for space! Chandra can focus on small areas of the sky and gather lots of details! The telescope also has a unique system for cooling its instruments, ensuring they work perfectly even in the coldness of space! ❄️

Data Collection And Analysis

Chandra collects tons of data while it orbits the Earth! 🌏Each time it looks at the sky, it gathers X-rays, which are sent down to scientists on Earth. These scientists study the data carefully to find out what they mean. They turn the raw data into images and graphs, helping them see patterns and understand cosmic events! 🔍It’s like solving a space puzzle! This information helps answer questions about how stars live and die. Scientists often share their findings in journals and at conferences, helping everyone learn more about the universe!

Collaborations And Partnerships

The Chandra X-ray Observatory works with many teams around the world! 🌍Scientists from NASA partner with researchers from institutions like Harvard University, MIT, and the European Space Agency. This teamwork brings different ideas and expertise together! The discoveries made by Chandra can lead to new questions that other researchers want to explore. By working together, they can share their knowledge and tools, making space exploration even more exciting! Collaborations with universities and research centers also ensure that students learn about space and can contribute to future discoveries!

Chandra X-ray Observatory Quiz

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