@NASASun

This account has been archived.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

Joined June 2008
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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 TRACERS live telecon starts in 1 hour! Listen in as mission experts discuss this soon-to-launch mission to study magnetic explosions in space. 🧲💥 go.nasa.gov/4eSqej3

Media Briefing: NASA to Launch TRACERS Mission to Study Earth's...

Experts discuss the upcoming launch of NASA’s TRACERS (Tandem Recon...

youtube.com
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It’s #SunDay! This week’s (July 4 - 10) space weather report includes: · 2 M-class flares · 0 C-class flares · 32 coronal mass ejections · 0 geomagnetic storms This video from NASA’s Solar Dynamics Observatory (SDO) shows the week’s activity. At about 2:33, SDO performs one of its calibration maneuvers, which keep the spacecraft’s telescopes in top working order. But what’s that at 2:47? 👇🤔
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At about 2:47 in the above video, something briefly blocks SDO’s view of the Sun. What is it? Share your guesses below – the answer will be revealed Monday, July 14 at noon ET! 🎉 More on flares & coronal mass ejections: go.nasa.gov/3Naeuv9

Solar Storms and Flares - NASA Science

Solar storms and flares are eruptions from the Sun that can affect us here on Earth.

science.nasa.gov
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Answer: That thing blocking the Sun at 2:47 is... us! 🌎 SDO has entered its Earth eclipse season, a three-week period that happens twice a year. During Earth eclipse season, SDO's orbit takes it behind Earth for brief period of time, momentarily blocking the spacecraft's view. Learn more: go.nasa.gov/4ly4o78
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From tracking plasma flows on the Sun, to detangling solar eruptions, to creating a “digital twin” of our entire neighborhood in space, NASA’s DRIVE Science Centers are on the case – and they now have new webpages! 👇 go.nasa.gov/4nKxphi go.nasa.gov/44TR8Uh go.nasa.gov/3Gx82yO Established in 2022, NASA’s DRIVE Science Centers are like heliophysics think tanks, where modelers, theoreticians, computer scientists, and observers come together to unravel the Sun’s biggest mysteries. More: go.nasa.gov/44twWbS 🖼️ credit: COFFIES DRIVE Science Center/Nick Featherstone
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This is the view from WITHIN the Sun’s atmosphere! ☀️👀🛰️ NASA’s Parker Solar Probe just released imagery from its closest-ever flyby of the Sun, revealing details in the solar atmosphere that scientists will be studying for years. More: go.nasa.gov/4kA9vSO
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This month, the Sun is stealing the spotlight! July’s #NASAScience calendar image showcases a spectacular solar eruption, captured in Dec. 2023 by the SUVI instrument aboard NOAA’s GOES West satellite. This SUVI 304Å image reveals plasma in the Sun’s upper chromosphere, at a temperature around 6,000 kelvins. 🔥 Dive deeper into the science: science.nasa.gov/multimedia/…
A detailed image of the Sun glowing bright orange-red with visible solar flares and active regions; NASA's logo appears in the top right corner on a black background.

ALT A detailed image of the Sun glowing bright orange-red with visible solar flares and active regions; NASA's logo appears in the top right corner on a black background.

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It’s #SunDay! This week’s (June 27 - July 3) space weather report includes: · 0 M-class flares · 1 C-class flare · 25 coronal mass ejections · 0 geomagnetic storms This video from NASA’s Solar Dynamics Observatory (SDO) shows the week’s activity. More on flares & coronal mass ejections: go.nasa.gov/3Naeuv9
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It looked like a minor solar eruption — but it had a major effect on Earth. ☀️💥🌎 In April 2023, a relatively weak solar storm produced vibrant auroras visible as far south as Arizona. Now, scientists have new insights into what made this storm so impactful — and how we might better detect similar events in the future. Learn more: go.nasa.gov/3GnpDZU 📸 Aurora over Larimore, North Dakota. Credit: Elan Azriel
Green aurora borealis lights streak across a night sky over a snowy landscape with bare trees silhouetted along the horizon.

ALT Green aurora borealis lights streak across a night sky over a snowy landscape with bare trees silhouetted along the horizon.

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Two successful launches, and that’s a wrap! 🚀🚀 The two SEED mission rockets launched from Kwajalein Atoll in the Marshall Islands on June 20 and June 28, reaching peak altitudes of 95 miles (153 kilometers) and 97 miles (157 km), respectively. Preliminary data suggest that both rockets flew through Sporadic-E layer clouds and all experiment systems worked as expected. Congrats to the team, time to head home! More about the SEED mission: go.nasa.gov/43U03mY Photos: 1. SEED team in front of the first rocket 2. The first SEED rocket vertical on the launch rail 3. First SEED rocket launch 4. Second SEED rocket launch 📸 credits: NASA/Chris Lanier @NASAWallops
A large group of people stand in a row on a concrete surface outdoors, with a sounding rocket mounted on the launch rail behind them and the ocean visible in the background under a partly cloudy sky.

ALT A large group of people stand in a row on a concrete surface outdoors, with a sounding rocket mounted on the launch rail behind them and the ocean visible in the background under a partly cloudy sky.

A tall rocket is positioned upright on a launch pad near palm trees by the ocean, with a clear blue sky in the background.

ALT A tall rocket is positioned upright on a launch pad near palm trees by the ocean, with a clear blue sky in the background.

A bright rocket launches into the night sky, surrounded by clouds of smoke and glowing flames at its base, illuminating the dark background.

ALT A bright rocket launches into the night sky, surrounded by clouds of smoke and glowing flames at its base, illuminating the dark background.

A rocket launches into the night sky, surrounded by clouds of smoke and glowing flames at its base, illuminating the dark background.

ALT A rocket launches into the night sky, surrounded by clouds of smoke and glowing flames at its base, illuminating the dark background.

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It’s #SunDay! This week’s (June 20-26) space weather report includes: · 2 M-class flares · 2 C-class flares · 34 coronal mass ejections · 0 geomagnetic storms This video from NASA’s Solar Dynamics Observatory (SDO) shows the week’s activity. More on flares & coronal mass ejections: go.nasa.gov/3Naeuv9
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Thank you to the millions who watched NASA's eclipse broadcast, took time to experience the eclipse, and shared in the wonder of the Sun and our place within this amazing universe.♥️ And HUGE congrats to the @NASASun team members who made this broadcast possible! It took many months of planning and hard work, but it was our honor to share this celestial spectacle with so many around the world.
NASA
@NASA
26 Jun 2025
We won an Emmy! Our live broadcast coverage of the 2024 total solar eclipse received this year's Emmy Award for Outstanding Live News Special. Get the details: go.nasa.gov/4k9jIpa
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Four facts about the solar wind that will blow your mind: ☀️🌬️🤯 1. The solar wind has been blowing non-stop since the Sun formed about 4.6 billion years ago. ⌛ 2. It travels about 1 million miles an hour (and faster). 🏃 3. It carries about 1.5 million tons of mass away from the Sun every second. 😯 4. It could keep blowing at that rate for a TRILLION YEARS without depleting the Sun! ⚖️ That’s a lot of solar wind — so where does it all go? 🤔👇 1/2 🧵
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2/2 🧵 The solar wind fills space around us to create a giant "bubble" we call the heliosphere. The heliosphere’s size, shape, and dynamics are mostly still unknown — but maybe not for long! NASA’s IMAP (Interstellar Mapping and Acceleration Probe) mission, scheduled to launch late September this year, will chart the heliosphere, revealing how the Sun and solar wind create and maintain our giant bubble in space. Ahead of launch, the spacecraft just got two more of its 10 instruments installed: go.nasa.gov/44wb0N3 More about IMAP: go.nasa.gov/3I2eU7O More about the solar wind: go.nasa.gov/4ljQ8ye
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Another daring dive by the Sun, complete! 🛰️☀️✅ On Thursday, June 19, NASA’s Parker Solar Probe completed its 24th close approach to the Sun, matching its record distance of 3.8 million miles (about 6.2 million kilometers) from the solar surface and mind-melting top speed of 430,000 miles per hour (about 692,000 kilometers per hour). More: go.nasa.gov/44s8yHg
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It’s #SunDay! This week’s space weather report includes: · 2 X-class flares · 12 M-class flares · 38 coronal mass ejections · 1 geomagnetic storm This video from NASA’s Solar Dynamics Observatory (SDO) shows the week’s activity. The two X-class flares both erupted from the same active region. Spot them at about 2:11 and 3:06 below! 🤩 More on flares & coronal mass ejections: go.nasa.gov/3Naeuv9
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So fresh and so clean, clean 🧼🫧 Inside the clean room at the Johns Hopkins Applied Physics Lab, NASA’s IMAP (Interstellar Mapping and Acceleration Probe) got its 10 instruments integrated into the spacecraft. 👇
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IMAP is now at the Astrotech Space Operations Facility near the agency's Kennedy Space Center in Florida prepping for launch later this fall. IMAP will study the heliosphere, the Sun’s magnetic bubble protecting our solar system from interstellar space. More about IMAP: go.nasa.gov/4ljkoJC
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The Sun emitted a strong solar flare on June 19, peaking at 7:50 p.m. ET. NASA’s Solar Dynamics Observatory captured an image of the event, which was classified as X1.9. go.nasa.gov/4k4bTB8
An extreme ultraviolet view of the Sun shows the bright flash of a solar flare on the Sun’s upper right side. The rest of the surface is mottled with darker and lighter regions, and faint loops of solar material can be seen extending off the Sun’s edges.

ALT An extreme ultraviolet view of the Sun shows the bright flash of a solar flare on the Sun’s upper right side. The rest of the surface is mottled with darker and lighter regions, and faint loops of solar material can be seen extending off the Sun’s edges.

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Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth’s atmosphere to physically affect humans on the ground. However — when intense enough — they can disturb the atmosphere in the layer where GPS & communications signals travel.
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To see how such space weather may affect Earth, check out @NWSSWPC, the U.S. government’s official source for space weather forecasts, watches, warnings, and alerts.
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