NASA Sun & SpaceVerified account

@NASASun

We study the Sun and how it affects space around Earth and other worlds, producing key knowledge to protect astronauts, satellites and robotic missions.

NASA Goddard, Greenbelt, MD
nasa.gov/sunearth
Joined June 2008
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  1. 7 hours ago

    The retired Orbiting Geophysics Observatory 1 satellite re-entered Earth’s atmosphere this weekend. This spacecraft studied Earth’s magnetic field during its mission in the 1960s.

    Observations by & , both funded by ’s Coordination Office, indicate the retired spacecraft OGO-1 will re-enter Earth’s atmosphere this weekend--a normal process that poses no threat to Earth. Learn more:
    1 reply 30 retweets 95 likes
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  2. 10 hours ago

    It usually takes a human eye to pick out the split-second magnetic explosions in data from our MMS spacecraft, with scientists reviewing 84 hours worth of data in a single day. But for the first time, artificial intelligence will lend scientists a hand.

    3 replies 42 retweets 207 likes
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  3. Aug 31

    Our magnetic field acts like a shield around Earth, repelling and trapping particles from the Sun. An unusually weak spot in the field can cause problems for satellites passing through this region. Here’s how & why we study the South Atlantic Anomaly:

    NASA Explores Earth's Magnetic "Dent"
    7 replies 147 retweets 403 likes
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  4. Aug 28

    Learn more about each of these five proposed missions from their lead scientists. ⬇️

    We've selected 5 proposals for concept studies of missions to help better understand the dynamics of the Sun. Each one offers the chance to observe something we've never before seen or to provide unprecedented insights into key areas of research:
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    27 retweets 116 likes
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  5. Aug 28

    . 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:

    56 replies 586 retweets 3,943 likes
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  6. Retweeted
    Aug 26

    Today, we celebrate ! Women at NASA have been paving the way for future generations. From engineers & scientists to communicators & artists, our incredible trailblazers push the boundaries & play a pivotal role in our success:

    11 replies 248 retweets 669 likes
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  7. Aug 26

    Some solar particles travel near the speed of light, reaching Earth in less than half an hour. But the effects of moving that fast mean those particles experience the time differently than what we measure! It's just one complication of relativistic travel:

    NASA's Guide to Near-Light Speed Travel
    6 replies 56 retweets 229 likes
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  8. Aug 26

    A short-lived auroral spiral is connected to a dramatic compression of Earth’s magnetosphere, measured by our MMS spacecraft. This research was recently published: Read more from an earlier presentation of this work:

    5 replies 86 retweets 296 likes
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  9. Retweeted
    Aug 25

    Voyager 2 and I hit some milestones : 🪐 - My twin had a close flyby of Saturn in 1981 🔵 - In 1989, Voyager 2 encountered Neptune ✨ - I entered interstellar space in 2012, becoming the first human-made object to explore this part of the universe.

    63 replies 1,061 retweets 4,731 likes
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  10. Aug 25

    Our ACE mission launched 23 years ago today! 🚀 The ACE spacecraft orbits between the Sun and Earth, about a million miles from our planet, where it monitors and studies solar wind and particles streaming toward us from the Sun.

    The ACE spacecraft in a slean room with one person holding up each of the spacecraft's door-sized solar panels
    8 replies 69 retweets 295 likes
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  11. Aug 24

    Have you met our newly-discovered neighbors? Citizen scientists helped discover 95 brown dwarfs — objects that are smaller than stars, but bigger than planets — many of which are within just a few dozen light years of us.

    4 replies 109 retweets 423 likes
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  12. Aug 23

    This , learn how the Sun’s early behavior influenced the development of life on Earth — and what that means for ’s search for life elsewhere in the universe. Listen to the newest episode of the podcast:

    49 replies 761 retweets 4,454 likes
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  13. Aug 21

    Download these images: 1️⃣ 2️⃣ 3️⃣

    16 retweets 61 likes
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  14. Aug 21

    Three years ago today, millions of people in the US saw the Sun in a new light during . 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. 🌎🌓☀️

    Composite image showing the partial and total phases of the eclipse
    Close-up showing the wispy corona as the Moon blocks the Sun's face
    View from the Space Station showing the dark shadow of the eclipse on Earth's surface
    and
    116 replies 1,268 retweets 7,975 likes
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  15. Aug 21

    Scientists look for liquid water on planets like Earth — close enough to their host star to be warm, but protected from the harshest stellar radiation by an atmosphere & magnetic field. But other factors make seemingly frozen planets :

    Ocean_Galaxy_1080.mp4
    #OceanWorlds Week, Exoplanets
    2 replies 41 retweets 124 likes
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  16. Retweeted
    Aug 20

    Join us today at 2 PM ET (18:00 UTC) for a Reddit AMA about ! A team of NASA scientists will be on hand to answer your questions about these watery worlds.

    3 replies 64 retweets 292 likes
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  17. Aug 20

    Late on Aug. 16, the Sun released a B1-class solar flare, the second smallest and a relatively common class of flare. The activity occurred in an otherwise quiet area of the Sun. Images from our SDO show the flare in 3 different wavelengths:

    SDO Views Aug. 16 Flare
    14 replies 273 retweets 1,395 likes
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  18. Aug 20

    43 years ago today, 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!

    76 replies 765 retweets 4,926 likes
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  19. Aug 19

    For several weeks this summer, our STEREO mission had the solar system’s best view of the star Betelgeuse. STEREO revealed more perplexing behavior from the star, which goes through brightness cycles: dimming sooner than scientists expected.

    A view of the star Betelgeuse seen from a spacecraft
    4 replies 87 retweets 360 likes
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  20. Retweeted
    Aug 18

    ., meet your new cosmic neighbors! Working with professional astronomers through a project, citizen scientists found 95 nearby objects, many within a dozen light-years of our solar system:

    Artist’s rendering of a white dwarf (a remnant of a long-dead Sun-like star) and a foreground object, which is the newly discovered brown dwarf companion.
    68 replies 654 retweets 4,804 likes
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