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Yahoo
a day ago
- Science
- Yahoo
NASA just took the closest-ever images of the sun, and they are incredible (video)
When you buy through links on our articles, Future and its syndication partners may earn a commission. NASA's Parker Solar Probe is no stranger to breaking records. On Dec. 24, 2024, Parker made history by flying closer to the sun than any spacecraft in history. The probe reached a distance of just 3.8 million miles (6.1 million kilometers) from the solar surface, entering the outermost layer of the sun's atmosphere, known as the corona. During this flyby, it also reached a top speed of 430,000 miles per hour (690,000 kilometers per hour), breaking its own record as the fastest ever human-made object. Now, NASA has released remarkable video captured during the historic flyby, offering the closest views of the sun ever recorded. The new images were captured with Parker's Wide-Field Imager for Solar Probe, or WISPR, revealing a never-before-seen view of the sun's corona and solar winds shortly after they are released from the corona. Video not playing? Some ad blockers can disable our video player. "Parker Solar Probe has once again transported us into the dynamic atmosphere of our closest star," said Nicky Fox, associate administrator, Science Mission Directorate at NASA Headquarters in Washington, in a statement accompanying the images. "We are witnessing where space weather threats to Earth begin, with our eyes, not just with models. This new data will help us vastly improve our space weather predictions to ensure the safety of our astronauts and the protection of our technology here on Earth and throughout the solar system." WISPR's images revealed an important boundary in the sun's atmosphere called the heliospheric current sheet, where the sun's magnetic field changes direction from north to south. It also captured, for the first time in high resolution, collisions between multiple coronal mass ejections (CMEs), which are major drivers of space weather, and are important in understanding risks to astronauts and technology on Earth such as power grids and communications satellites. "In these images, we're seeing the CMEs basically piling up on top of one another," said Angelos Vourlidas, the WISPR instrument scientist at the Johns Hopkins Applied Physics Laboratory, which designed, built, and operates the spacecraft in Laurel, Maryland. "We're using this to figure out how the CMEs merge together." Before the Parker Solar Probe, NASA and its international partners could only study solar wind from afar, which is why the spacecraft has been instrumental in closing key knowledge gaps. It identified the widespread presence of "switchbacks" — zig-zagging magnetic field patterns — around 14.7 million miles from the sun and linked them to the origins of one of the two main types of solar wind. Closer in, at just 8 million miles, Parker discovered that the boundary of the sun's corona is far more uneven and complex than previously believed. But more remained to be discovered. "The big unknown has been: how is the solar wind generated, and how does it manage to escape the sun's immense gravitational pull?" said Nour Rawafi, the project scientist for Parker Solar Probe at the Johns Hopkins Applied Physics Laboratory. "Understanding this continuous flow of particles, particularly the slow solar wind, is a major challenge, especially given the diversity in the properties of these streams — but with Parker Solar Probe, we're closer than ever to uncovering their origins and how they evolve." Prior to Parker Solar Probe, distant observations suggested there are actually two varieties of slow solar wind, distinguished by the orientation or variability of their magnetic fields. One type of slow solar wind, called Alfvénic, has small-scale switchbacks. The second type, called non-Alfvénic, doesn't show these variations in its magnetic field. As it spiraled closer to the sun, Parker Solar Probe confirmed there are indeed two types of solar wind. Its close-up views are also helping scientists differentiate the origins of the two types, which scientists believe are unique. The non-Alfvénic wind may come off features called helmet streamers — large loops connecting active regions where some particles can heat up enough to escape — whereas Alfvénic wind might originate near coronal holes, or dark, cool regions in the corona. "We don't have a final consensus yet, but we have a whole lot of new intriguing data," said Adam Szabo, Parker Solar Probe mission scientist at NASA's Goddard Space Flight Center in Greenbelt, Maryland. The Parker Solar Probe is built to endure extreme conditions — from the freezing cold of deep space to the intense heat near the sun. A key factor in its survival is the difference between temperature and heat. While space near the sun can reach temperatures of several million degrees, that doesn't necessarily mean there's a lot of heat. This is because the sun's corona is extremely thin, meaning there are fewer particles. Even though individual particles in the corona are incredibly hot, there aren't many. The probe, therefore, doesn't receive much heat. "While Parker Solar Probe will be traveling through a space with temperatures of several million degrees, the surface of [its] heat shield that faces the sun will only get heated to about 2,500 degrees Fahrenheit (about 1,400 degrees Celsius)," write NASA scientists. These temperatures are, of course, still incredibly hot, which makes its heat shield, the Thermal Protection System (TPS), essential. The shield is made from a carbon composite foam sandwiched between two carbon plates. Carbon is ideal for this purpose because it is both lightweight and able to withstand extremely high temperatures without melting. "Tested to withstand up to 3,000 degrees Fahrenheit (1,650 degrees Celsius), the TPS can handle any heat the sun can send its way, keeping almost all instrumentation safe," explained NASA. Its structure allows it to endure intense heat while minimizing weight, making it crucial for a spacecraft that needs to travel at extreme speeds. The outer surface of the TPS is also coated with a white ceramic paint, which helps reflect as much solar energy as possible and further reduces the amount of heat absorbed.
India Today
2 days ago
- Science
- India Today
This is the closest ever image of the Sun. You can clearly see the solar wind
In a historic achievement for solar science, NASA has released the closest-ever images of the Sun, captured by the Parker Solar Probe during its record-breaking approach in December probe flew just 3.8 million miles from the solar surface, skimming through the Sun's outer atmosphere, or corona, and offering humanity an unprecedented view into the heart of our solar system's its Wide-Field Imager for Solar Probe (WISPR), Parker Solar Probe delivered detailed images of the corona and the solar wind, a continuous stream of electrically charged particles that emanates from the Sun and influences the entire solar SOLAR WIND COMING FROM THE SUN These images allow scientists to observe, for the first time, the dynamic processes at the very source of space weather events that can disrupt satellites, power grids, and communications on Fox, associate administrator for NASA's Science Mission Directorate, emphasised the significance and said, 'We are witnessing where space weather threats to Earth begin, with our eyes, not just with models. This new data will help us vastly improve our space weather predictions to ensure the safety of our astronauts and the protection of our technology here on Earth and throughout the solar system.'Unraveling the Mysteries of Solar WindThe newly released WISPR images reveal the turbulent boundary where the Sun's magnetic field flips direction, known as the heliospheric current the first time, scientists observed multiple coronal mass ejections (CMEs)—massive bursts of charged particles—colliding and merging in high resolution, a process that can intensify the effects of space weather on Earth. Angelos Vourlidas, WISPR instrument scientist, noted, 'We're seeing the CMEs basically piling up on top of one another which can be important for space weather.'Zooming in on Solar Wind's BirthplaceParker Solar Probe's close passes have revolutionised our understanding of the solar wind's origins. The probe confirmed that the fast solar wind is powered by magnetic 'switchbacks'—zigzagging fields—originating in coronal holes, while the slow solar wind, denser and more variable, may stem from large magnetic loops called helmet probe also distinguished two types of slow solar wind:Alfvenic: Characterised by small-scale switchbacks, likely from coronal Lacking these variations, possibly from helmet AheadWith its next close approach scheduled for September 2025, Parker Solar Probe continues to gather data that promises to deepen our understanding of the Sun's influence on space weather and, ultimately, life on Nour Rawafi, project scientist, put it, 'With Parker Solar Probe, we're closer than ever to uncovering [the solar wind's] origins and how they evolve.'- Ends
Engadget
2 days ago
- Science
- Engadget
These are the closest-ever images of the sun from Parker Solar Probe's historic flyby
These are the closest-ever images of the sun from Parker Solar Probe's historic flyby NASA's Parker Solar Probe made history with the closest-ever approach to the sun last December, and we're finally getting a look at some of the images it captured. The space agency released a timelapse of observations made using Parker's Wide-Field Imager for Solar Probe (WISPR) while it passed through the sun's corona on December 25, 2024, revealing up close how solar wind acts soon after it's released. The probe captured these images at just 3.8 million miles from the solar surface. To put that into perspective, a NASA video explains, "If Earth and the sun were one foot apart, Parker Solar Probe was about half an inch from the sun." The probe got an unprecedented view of solar wind and coronal mass ejections (CMEs) during the approach, which could be invaluable for our understanding of space weather. "We are witnessing where space weather threats to Earth begin, with our eyes, not just with models," said Nicky Fox, associate administrator, Science Mission Directorate at NASA Headquarters. After completing its December flyby, the Parker Solar Probe matched its record distance from the surface in subsequent approaches in March and June. It'll make its next pass on September 15.
USA Today
3 days ago
- Science
- USA Today
The Parker Solar probe captures closest-ever images of the Sun. See the results.
Newly released imagery from NASA shows the Sun's corona in stunning detail after the Parker Solar probe performed its closest-ever flyby. On its closest-ever flyby to the Sun, NASA's Parker Solar probe captured newly released images of solar winds purging out from the Sun's outermost atmosphere, the Corona. Scientists are learning more about the Sun's impact throughout the solar system, including events that may have an impact on Earth. 'Parker Solar Probe has once again transported us into the dynamic atmosphere of our closest star,' said Nicky Fox, associate administrator, Science Mission Directorate at NASA Headquarters in Washington in a recent release. 'We are witnessing where space weather threats to Earth begin, with our eyes, not just with models. This new data will help us vastly improve our space weather predictions to ensure the safety of our astronauts and the protection of our technology here on Earth and throughout the solar system.' Sun's solar wind captured in detail For the first time, the probe recorded in high resolution the collision of numerous coronal mass ejections (or CMEs) which are massive explosions of charged particles that play a major role in space weather. 'In these images, we're seeing the CMEs basically piling up on top of one another,' said Angelos Vourlidas, the WISPR instrument scientist at the Johns Hopkins Applied Physics Laboratory, which designed, built, and operates the spacecraft in Laurel, Maryland. 'We're using this to figure out how the CMEs merge together, which can be important for space weather.' Unable to view our graphics? Click here to see them. The Parker Solar Probe discovered that while the solar wind is a steady breeze near Earth, it is anything but at the Sun. The spacecraft experienced switchbacks, or zigzag magnetic fields, when it got within 14.7 million miles of the Sun. Scientists found that these switchbacks, which occurred in clusters, were more frequent than anticipated using data from the Parker Solar Probe. How close was the probe to the sun? On December 24, 2024, the Parker Solar Probe began its closest approach to the Sun, traveling only 3.8 million miles from the solar surface. Putting that into perspective, if the Earth and Sun were only 1 foot apart, the Parker probe would be about a 1/2 inch from the Sun's surface, according to NASA. In the spacecraft's closest orbit to the Sun, it used a variety of scientific instruments, including the Wide-Field Imager for Solar Probe (or WISPR) to gather data as it passed through the Sun's outer atmosphere, or corona. The solar wind, a continuous flow of electrically charged particles from the Sun that rages throughout the solar system and the corona are both visible in the new WISPR photos. Knowing the origins of the solar wind near the Sun is the first step towards comprehending its effects, according to NASA. More: James Webb Space Telescope marks 3rd anniversary: What to know about observatory More: NASA astronaut captures rare phenomenon from 250 miles above Earth: See photo of 'sprite' How the Sun's solar winds impact Earth's atmosphere The Earth's magnetic field is our invisible protector. The field creates a barrier that shields us from the powerful solar winds. The magnetic field can occasionally become disrupted by stronger solar winds. According to NASA, in some cases, it can also trigger space weather events that interfere with everything from land-based power networks to ship communications on our oceans to our satellites in orbit. Stunning auroras are also created when the particle stream interacts with gases in the planet's magnetic field. Parker Solar Probe is expected to continue gathering more data in its present orbit as it makes future passes through the corona to assist scientists to discover the origins of the sluggish solar wind. The next pass is scheduled for September 15, 2025. SOURCE NASA, Goddard Space Flight Center, Johns Hopkins APL, Naval Research Laboratory and USA TODAY research
The Independent
5 days ago
- Science
- The Independent
Closest-ever images of the Sun captured by Nasa probe
Showing now | News 03:27 NASA has released the closest-ever images of the Sun, captured just 3.8 million miles from its surface. Since its launch in 2018, the Parker Solar Probe has gradually circled closer to the sun, flying past Venus to use the planet's gravity to move it into a tighter orbit. Newly released footage shows historic close-up images captured during the spacecraft 's closest approach to the Sun on December 24, 2024. 'This new data will help us vastly improve our space weather predictions to ensure the safety of our astronauts and the protection of our technology here on Earth and throughout the solar system,' said Nicky Fox, associate administrator for NASA's Science Mission Directorate.
