This account has been archived. Follow @NASASpaceAlerts for news about solar activity and @NASASolarSystem for all other Heliophysics-related news.

Hey @NASASun fans – this account is moving! 🚛 Going forward, all solar activity reports and alerts will come from the new @NASASpaceAlerts account, where we'll share breaking news about solar activity as well as asteroids, meteors, comets, and noteworthy happenings in our local space environment. If you want to stay updated on what's happening on the Sun, give @NASASpaceAlerts a follow! For all other heliophysics-related content, we’ll be delivering it to you from the @NASASolarSystem account, so give them a follow as well! Once the move is complete, we will post a final notice to this account, then mark it as archived. Thanks for being with us for all our trips around the Sun!☀️
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The Sun emitted a strong solar flare on Jan 5, 2023, peaking at 7:57 p.m. ET. NASA’s Solar Dynamics Observatory captured an image of the event, which was classified as X-class. bit.ly/3IsPJsW

ALT Gif image of a strong flare captured by NASA's Solar Dynamics Observatory. The Sun is a mix of orange, yellow, and brown and slowly rotates. The strong flare appears on the lower left of the Sun where the flare occurs. A big bright burst of light flows from the Sun where the flare occurs. Other smaller rays of light and flowing color emanate from the Sun indicating other solar activity.

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Parker’s new images of Venus are the first of many more to come from the DAVINCI, VERITAS, and EnVision missions. Join us tomorrow, on Feb. 10 at 11am ET / 4pm GMT, for a live @TwitterSpaces discussion about the future of Venus research: nitter.app/i/spaces/1gqxvlBrYRpGB #VisionsOfVenus
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The Sun emitted a strong solar flare on June 20, 2023, peaking at 1:09 ET. NASA’s Solar Dynamics Observatory captured an image of the event, which was classified as X1.0. go.nasa.gov/3qSaNT7

ALT Time-lapse of solar activity from June 6, 2023. The strong solar flare is pictured in the lower right of the image.

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Say cheese! 📸 Today, NASA’s Solar Dynamics Observatory caught the Sun "smiling." Seen in ultraviolet light, these dark patches on the Sun are known as coronal holes and are regions where fast solar wind gushes out into space.
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uh, EXCUSE me?!? #solareclipse2017
HA HA HA I’ve blocked the Sun! Make way for the Moon. #SolarEclipse2017
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Today, people in parts of the Northern Hemisphere saw a partial or annular solar eclipse! 🌙 Here are a few of our photos from the East Coast. flickr.com/photos/nasahqphot… #SolarEclipse Did you see the eclipse? Show us your photos!
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The Sun emitted a strong solar flare on Jan. 9, 2023, peaking at 1:50pm ET. NASA’s Solar Dynamics Observatory captured imagery of the event, which was classified as X1.9. go.nasa.gov/3IBxH8e
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Wow @NASAMoon – after all this time, you finally put a ring on it! 🥰
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#SolarOrbiter has made its first close pass by the Sun, studying our star and space with a comprehensive suite of instruments — and the data is already revealing previously unseen details. This is #TheSunUpClose. go.nasa.gov/3fB355k
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The Sun emitted a significant solar flare early this morning, peaking at 1:01 a.m. ET. NASA’s Solar Dynamics Observatory captured an image of the event, which was classified as M5.5. go.nasa.gov/3GPiqNg
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Mercury transits are relatively rare — the next one isn't until 2032! Watch Mercury make its trek across the Sun today at mercurytransit.gsfc.nasa.gov 🛰⚫️☀️
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How do you draw a pride flag? 🤔 With SCIENCE! This flag is a composite of NASA imagery of phenomena from Earth and far, far beyond it. Details below ⬇️ Credit: Rachel Lense
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After last month’s smiley face, the Sun’s mood seems to have…soured. Captions in the comments! #captionthis
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The celestial dance between the Sun, Earth & Moon continues. Tonight, the trio will align into a total lunar eclipse. The Sun, Earth & Moon align, the Moon passes into Earth’s shadow and turns red. NASA's live broadcast of the show begins at 11 pm ET ⬇️ go.nasa.gov/3l8WVO5
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The @NASAWebb telescope orbits the Sun a million miles from Earth at what's called the second Lagrange point, or L2. This keeps the telescope in line with Earth as it orbits the Sun, allowing its sunshield to block the light and heat of the Sun and Earth. go.nasa.gov/3ATJCtX
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Parker Solar Probe has phoned home! After passing just 3.8 million miles from the solar surface on Dec. 24 — the closest solar flyby in history — we have received Parker Solar Probe’s beacon tone confirming the spacecraft is safe. go.nasa.gov/4fIKuTe
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The Sun emitted two strong solar flares on May 10-11, 2024, peaking at 9:23 p.m. EDT on May 10, and 7:44 a.m. EDT on May 11. NASA’s Solar Dynamics Observatory captured images of the events, which were classified as X5.8 and X1.5-class flares. go.nasa.gov/3yju2sA
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#ParkerSolarProbe lifted off from Space Launch Complex 37 at Cape Canaveral Air Force Station in Florida at 3:31 a.m. EDT aboard a @ulalaunch #DeltaIVHeavy! 🚀 Follow along with the mission here and at nasa.gov/parker as we explore the Sun like never before.
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Three years ago today, millions of people in the US saw the Sun in a new light during #Eclipse2017. During a total solar eclipse, the Moon blocks out the Sun’s bright face, allowing observers to see the Sun’s faint outer atmosphere, the corona. 🌎🌓☀️ nasa.gov/eclipse
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More passion!☀️ More passion!☀️ More energy!💥 More energy!💥 Another M8.8-class flare just erupted from the Sun! Here’s SDO’s view:
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It’s #SunDay — with a special guest, the Moon! Our satellite’s view of the Sun was briefly interrupted by a lunar transit on Oct. 16. At peak, the Moon covered about 44% of the Sun. go.nasa.gov/3mdoe8C
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Need a new perspective? #ParkerSolarProbe saw comet #NEOWISE from its unique position in space on July 5, giving scientists a good look at the comet’s dual tails. More: go.nasa.gov/3fkqTdm
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Here's to another year orbiting our Sun! Happy New Year! 🥳

ALT A gif of the planets orbiting around the Sun. Earth appears in the forefront before the camera zooms out to show more of the solar system.

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No #eclipse glasses? You can still watch #Eclipse2017 by making your own pinhole projector! eclipse2017.nasa.gov/safety
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POW! The Sun just served up a powerful flare! ☀️ 💥 At 11:35 a.m. EDT today, a powerful X1-class solar flare erupted from the Sun. NASA’s Solar Dynamics Observatory caught it all on camera. 📸 More on our Solar Cycle 25 blog: go.nasa.gov/3nA3OsJ
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The Sun emitted a strong solar flare on May 10, 2024, peaking at 2:54 a.m. ET. NASA’s Solar Dynamics Observatory captured an image of the event, which was classified as X3.9. go.nasa.gov/3UUhUa3
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This footage of a minor solar eruption was captured on Aug. 13 by our Sun-studying Solar Dynamics Observatory satellite. These images were captured in extreme ultraviolet light, a type of light invisible to our eyes. go.nasa.gov/2LidoLE
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At L2, I will always hold on to you, @NASAWebb – with my gravitational force 🧲 #ValentinesDay
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Scientists have just announced the first discoveries from #ParkerSolarProbe’s daring mission to the Sun. What they’ve learned has changed our understanding of the way the Sun releases material and particles, influencing Earth and the entire solar system: go.nasa.gov/34Qj1LC
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Ahhh… Venus Venus's thick atmosphere reflects a lot of light, making it the third brightest object in our sky. But it also obscures the planet’s surface from view. This image from NASA’s Pioneer Venus Orbiter shows the planet’s thick atmosphere.
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NASA’s Solar Dynamics Observatory, or SDO, has spent the last 12 years in space capturing our Sun in unprecedented resolution. Here’s what a decade of Sun looks like through SDO’s eyes ☀️
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There is a partial lunar eclipse tonight! Most of the Western Hemisphere will be able to see the Moon turn red as it passes into Earth’s shadow. The eclipse will last 3 hours, 28 minutes and 23 seconds. Learn more: go.nasa.gov/3kNyp5j
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That's all, folks! Mercury has left the disk of the Sun, completing the transit. The next Mercury transit is in 2032 — so in the meantime, you can read up on @NASAUniverse's TESS mission, which uses transits in other star systems to look for exoplanets! nasa.gov/tess
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We get it, it’s not easy being the hottest star around! But hey, @NASAWebb, don’t forget what powers your solar array!
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On March 6, our Solar Dynamics Observatory witnessed a lunar transit where both the Sun and Moon displayed a little odd behavior. Not only did the Moon seem to double pack partway through, but the Sun seems to "shiver" throughout. Here's why it happened: blogs.nasa.gov/sunspot/2019/…
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Why do we get auroras on Earth after eruptions occur on the Sun? A thread. 🧵 ⬇️⬇️⬇️ (Images: Left: a solar flare captured by NASA's Solar Dynamics Observatory. Right: Aurora seen from Lummi Island, Washington, at 10:54 p.m. PT on May 10, 2024. Credit: Jeff Carter)
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We may not be able to use the Force, but our planet is shielded by a magnetic force. Earth’s magnetic field, the magnetosphere, deflects charged particles from the Sun & space — and its quirks are what create things like the aurora. #MayThe4thBeWithYou nasa.gov/magnetosphere

ALT Earth is surrounded by a teardrop-shaped magnetic bubble in space, which deflects the solar wind particles flowing over it

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See the solar system from a new perspective. 👀 Three of our Sun-studying missions captured unique views of the planets from their vantage points around the inner solar system. go.nasa.gov/3pxYiXr
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How it started: How it’s going:
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Today, @ESASolarOrbiter makes its first close approach to the Sun, called perihelion, bringing the spacecraft within 48 million miles of our star. This is the closest distance at which a spacecraft has ever taken images of the Sun. More from @ESA: esa.int/Science_Exploration/…
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Our Solar Dynamics Observatory satellite saw its 1st lunar transit of 2021 early this morning. The Moon crossed in front of SDO’s view of the Sun for about 30 minutes, seen here in a wavelength of extreme ultraviolet light, which is invisible to our eyes. go.nasa.gov/3oBrLix
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Earth isn’t the only planet that has auroras! When charged particles from the #Sun strike Jupiter, they produce auroras hundreds of times more energetic than those on Earth. @NASAHubble captured this view of Jupiter’s ultraviolet aurora. Find out more: go.nasa.gov/39Bld15
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It’s official: We have reached solar max phase! ☀️ 📈 @NASA, @NOAA, and the international Solar Cycle Prediction Panel just announced that the Sun has reached its solar maximum period. Expect solar eruptions, auroras, and more: go.nasa.gov/4h4toRr
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“Look again at that dot. That’s here. That’s home. That’s us.” – Carl Sagan 32 years ago today, NASA’s Voyager 1 turned its cameras toward Earth. It captured our home planet roughly 4 billion miles away as this tiny, bright speck visible within a sunbeam.
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The Sun emitted a strong solar flare on Jan. 10, 2023, peaking at 5:47 pm ET. NASA’s Solar Dynamics Observatory captured imagery of the event, which was classified as X1.0. bit.ly/3GzuyTp

ALT A red and gold Sun against a black background. A bright white and yellow X flashes and flickers in the upper left side of the Sun. This is the flare. The other parts of the Sun are a mix of red and black.

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The Sun emitted a strong solar flare on May 14, 2024, peaking at 12:51pm ET. NASA’s Solar Dynamics Observatory captured an image of the event, which was classified as X8.7. go.nasa.gov/4aipKPf
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These are the highest-resolution views ever captured of the Sun’s outer atmosphere, the corona. This data from a @NASA sounding rocket mission reveals fine structure in this part of the Sun, showing loops of material as thin as 125 miles across. More: go.nasa.gov/2VDaIzb
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Bring some sunshine into your mailbox. 📬☀️ New @USPS stamps will feature views of the Sun from our Solar Dynamics Observatory, showcasing our star’s dynamic and dazzling activity. go.nasa.gov/3bMRmkX
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Another one! ☀️ 💥 An M6.6-class solar flare erupted on Monday, May 13. (Not as strong as some of the others we’ve had in the past week, but it sure is pretty!) This week, we’re answering popular questions about solar storms and their impacts on Earth. Stay tuned!
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Parker Solar Probe has made history. After seven days of silence, Parker has resumed communication with Earth, confirming it's healthy after soaring just 3.8 million miles from the solar surface — the closest a human-made object has ever been to a star. go.nasa.gov/40cucNU
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43 years ago today, @NASAVoyager 2 launched on a journey that would take it past the outer planets and the heliosphere, the Sun’s bubble of influence, and into interstellar space. Happy launch anniversary, Voyager 2! nasa.gov/voyager
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Happy 30th birthday, @NASAHubble! 🎂 Hubble helps us understand the Sun's effects throughout space: We study the Sun’s interaction with the planets via aurora observations and learn about our Sun’s boundary to interstellar space with images of bow shocks at other stars. #Hubble30
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Our Solar Dynamics Observatory saw #Eclipse2017, too! Keep an eye on this page for more satellite views: go.nasa.gov/2x7b8kf
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This supernova remnant, known as the Cygnus Loop, formed when a star exploded some 20,000 years ago. It's still expanding into space today! A new NASA rocket mission launching Sunday night will zoom in on its sizzling edge.🚀 More: go.nasa.gov/3sinqI1
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CONFIRMED! The satellite re-discovered on Jan. 20 is IMAGE, a NASA mission we lost contact with in Dec. 2005! 🛰🎉 Full details: go.nasa.gov/2nmV4qQ
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Just a few more minutes in today's #MercuryTransit! Watch Mercury complete its journey across the Sun through the eyes of our Solar Dynamics Observatory satellite ➡️ mercurytransit.gsfc.nasa.gov. SDO keeps a constant eye on the Sun, so it has a prime view for transits like this! 🛰☀️
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#DYK @NASAWebb doesn’t only look at faraway galaxies? Webb can also observe objects orbiting our Sun, including Mars, asteroids, comets, minor planets like Pluto and Eris, and giant planets like Jupiter, captured in this newly released image. For more ➡️ go.nasa.gov/3PjB0kP
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This #SunDay, learn how the Sun’s early behavior influenced the development of life on Earth — and what that means for @NASAAstrobio’s search for life elsewhere in the universe. Listen to the newest episode of the #GravityAssist podcast: go.nasa.gov/3j0MDwq

ALT Animation of what the Sun may have looked like 4 billion years ago, with violent outbursts

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And the transit has begun! 🎉 Our Sun-watching satellite saw Mercury enter the disk of the Sun. Watch at mercurytransit.gsfc.nasa.gov
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It's #SunDay! ☀️ Space isn't empty — it's filled with particles flowing out from the Sun, called the solar wind. 💨 Scientists use a combination of satellite observations and computer models to trace the solar wind back to its source on the Sun: blogs.nasa.gov/sunspot/2019/…
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Our Solar Dynamics Observatory satellite caught this view of an active region on the Sun on May 30-June 1! Note the Earth scale inset below the active region — the longest of the magnetic loops extend about 10 times the diameter of Earth. go.nasa.gov/2sKAu6d
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Poland will design and build one of 10 instruments on our Interstellar Mapping and Acceleration Probe mission. The GLOWS instrument will observe light bouncing off hydrogen in interstellar space, helping scientists map our astronomical neighborhood. More: go.nasa.gov/3ssk803
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The Sun emitted a moderate solar flare on May 3, 2022, peaking at 8:19 p.m. ET. NASA’s Solar Dynamics Observatory, which watches the Sun constantly, captured an image of the event. Learn more ➡️ go.nasa.gov/3KIzFAK
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Tonight at precisely 11:42 p.m. ET, the Moon will become a full Moon. A full Moon happens when the Sun and Moon are aligned on opposite sides of Earth and 100% of the Moon's face is illuminated by the Sun. Learn more: moon.nasa.gov/moon-in-motion…
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Still have your solar viewing glasses from last month’s eclipse? If so, break ‘em out! If you have sunny skies, you can currently see a huge sunspot group on the Sun with nothing more than your solar viewing glasses. ☀️
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The Sun goes through regular cycles of high & low activity. This cycle affects the frequency of space weather events, but it doesn't have a major effect on Earth's climate — even an extended minimum wouldn't have a significant effect on global temperature. climate.nasa.gov/blog/2953/t…
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As the solar wind gushes out from the Sun, it bathes the planets and can create colorful dancing lights known as auroras.
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.@NASA has selected five candidate missions that would explore various aspects of the Sun and its effects on Earth & space. Each of the five proposed missions will conduct concept studies, after which up to two will be chosen for launch. More: nasa.gov/press-release/nasa-…
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This week marks 25 years in space for @ESA and @NASA’s Solar and Heliospheric Observatory, or SOHO! 🛰☀️🎉 To celebrate, scientists from the mission will be taking your questions on teddit.net/r/space — join us on Wednesday, Dec. 2, at 3pm ET!
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Remember the big solar storm in May? Scientists have just discovered that, in addition to creating spellbinding auroras, the storm also made a new temporary ring of charged, high-energy particles encircling Earth.
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Here’s another view of today’s X9-class solar flare, the most powerful of this solar cycle, featuring two different wavelengths of extreme ultraviolet light captured by NASA’ Solar Dynamics Observatory. 🧐
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Following #SolarOrbiter's 11:03pm ET launch, mission controllers received a signal from the spacecraft indicating its solar panels deployed successfully! 🚀🛰〰️📡 Here's what's coming up next for the mission as it takes solar science to new heights: go.nasa.gov/39xG7bZ
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The INCAA sounding rockets launched early this morning into the Alaskan skies. 🚀 The pair of rockets were chasing the aurora to understand how much energy they add to our atmosphere. More: go.nasa.gov/3v1L8pl Image credit: NASA Wallops/Terry Zaperach
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HAPPENING RIGHT NOW: NASA’s Parker Solar Probe is making its closest-ever approach to the Sun! 🛰️ ☀️ More on this historic moment from @NASAScienceAA Nicola Fox 👇 Follow Parker’s journey: go.nasa.gov/3ZS4SME #3point8
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Today, @OSIRISREx attempts to collect a sample of asteroid Bennu. Studying this sample will help scientists learn about the formation of our solar system & origins of life on Earth — and how the solar wind affects small worlds like Bennu. #ToBennuAndBack go.nasa.gov/2IOadQh
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It's #SunDay! ☀️ #ParkerSolarProbe is speeding towards the Sun for its fifth flyby, and the mission team has turned on the science instruments earlier than usual. This will be the longest observation campaign so far for the spacecraft: blogs.nasa.gov/parkersolarpr…
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#HappyThanksgiving! We hope you're able to enjoy some pie today, though we're partial to slices of Sun. 🥧☀️ Each color shows a different wavelength of light captured by our Solar Dynamics Observatory satellite. Find out how this helps us study the Sun: go.nasa.gov/1Pv0mtF
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It’s eclipse season! ☀️ 🌎 🌕 The Nov. 18/19 lunar eclipse will *almost* be a total eclipse: a tiny sliver of the Moon will stay illuminated by the Sun. Earth’s shadow will turn the rest a deep red. More: go.nasa.gov/3kNyp5j
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Happy Halloween! Our sun looks a bit like a spooky jack-o'-lantern in this image from sun-watching spacecraft SDO: go.nasa.gov/2eMGOm3
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#ParkerSolarProbe is on its way to the Sun, where it will come within 4 million miles of the surface. The region it will fly through, the corona, is actually hundreds of times hotter than the surface. That's one mystery we hope to solve with this mission. go.nasa.gov/2An4JHI
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The Sun emitted a strong solar flare peaking at 3:08 a.m. on May 27, 2024. NASA’s Solar Dynamics Observatory captured imagery of the event, which was classified as X2.8: go.nasa.gov/3KhHShN

ALT Animated gif of a flare from the limb of the Sun, with a large plume of material escaping after the eruption.

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It's #SunDay! ☀️ The Sun emits light across the electromagnetic spectrum, and 10 of those wavelengths — most of them invisible to our eyes — are showcased here. 〰 Read the story behind the creation of this data visualization: blogs.nasa.gov/sunspot/2019/…
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It’s #SunDay! ☀️ In its youth, the Sun shaped our planet’s atmosphere and the development of life on Earth. Researchers are using a stellar analogue — similar to the young Sun — to understand what the Sun may have been like in its early years. go.nasa.gov/37qK6YA
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The Sun emitted a strong solar flare on May 29, 2024, peaking at 10:37 a.m. ET. NASA’s Solar Dynamics Observatory captured an image of the event, which was classified as X1.4.
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This #SunDay, take in the sounds of our star. 🎧☀️ This is sonified data from @ESA and @NASA’s Solar and Heliospheric Observatory, which has captured the dynamic movement of the Sun’s atmosphere for nearly 25 years. go.nasa.gov/3nLm6Wu
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Reminder: Join us this afternoon (9/15) to hear from scientists about the Sun's activity and predictions for the upcoming solar cycle! 1pm ET: Listen to the teleconference 3pm ET: Watch #NASAScience Live 4pm ET: Ask Us Anything on Reddit Info & links: go.nasa.gov/32owrjf

ALT Ultraviolet footage showing a tongue of solar material exploding from the Sun

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One or more of Uranus’ moons might have oceans hidden beneath their icy surfaces, according to new findings. 🌚 🌊
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Our second attempt to launch Parker #SolarProbe will happen on #SunDay, Aug. 12 at 3:31 a.m. EDT / 12:31 a.m. PDT. 🚀☀️ Set your alarm and tune in on nasa.gov/live!
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Sound on! 🔈 In 2020, NASA’s Parker Solar Probe flew through Venus’ upper atmosphere and detected a natural radio signal. The data – sonified below – is helping scientists better understand how our sister planet became so inhospitable: go.nasa.gov/3s54j0a #VisionsOfVenus
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Happy #SunDay! ☀️ This mesmerizing video of our Sun shows a solar active region — an area of intense and complex magnetic fields on the Sun, often associated with solar eruptions — with magnetic loops twisting and swaying above it. go.nasa.gov/2jm5OUN
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Today, June 20, is the solstice — one of two times a year when Earth is most tilted with respect to the planet of its orbit. The Northern Hemisphere is tilted towards the Sun, meaning today is the hemisphere's longest stretch of daylight for the year. nasa.tumblr.com/post/6214575…
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Ever wondered how auroras are linked to solar activity? Ask our scientists anything about how we study the Sun, its effects on Earth, and everything in between! Reply with questions for our scientists! We'll be answering live 3-5 p.m. ET on Friday, May 1. #NASAatHome
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Our Sun isn’t massive enough to collapse into a black hole ⚫️ — but thanks to an international collaboration, you can still get a good look at one. Read more about the first-ever image of a black hole: go.nasa.gov/2Ky9CTo #EHTBlackHole
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The countdown to perihelion is on! ⏰ In less than 12 hours, #ParkerSolarProbe will make its closest-yet approach to the Sun. It will face intense conditions while gathering unprecedented science data just 15 million miles from the Sun's surface: blogs.nasa.gov/parkersolarpr…
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The Sun emitted a strong solar flare on July 13, 2024, peaking at 10:34 p.m. ET. NASA’s Solar Dynamics Observatory captured an image of the event, which was classified as X1.2. go.nasa.gov/4cVhcQJ
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Our Sun-watching satellite captured extreme ultraviolet images of a sunspot rotating into view--for the second time! go.nasa.gov/2vfsoVE
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Real-time images from NASA’s Solar Dynamics Observatory show an enormous sunspot group moving across the Sun right now! If you have eclipse glasses and good vision, you might be able to see it without magnification. (Never look directly at the Sun without proper eye protection!)
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