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Home Page - NSO - National Solar Observatory
NSO Receives Funding from NSF
to Design Next-Generation Solar Observing Network
to Advance Solar Science, Space Weather Forecasting
Inouye Delivers
Record-Breaking Images
of Solar Flare, Coronal Loops
“Raindrops in the Sun’s Corona”
New Adaptive Optics
Shows Stunning Details
NSO’s Integrated Synoptic Program (NISP)
Observing the Sun
for more than half a century
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and updates
NSF’s Inouye Solar Telescope
The most powerful
solar telescope on Earth
NSO Receives Funding from NSF-
to Design the Next-Generation Solar Observing Network
to Advance Solar Science, Space Weather Forecasting
Inouye Delivers
Record-Breaking Images
of Solar Flares, Coronal Loops
Inouye Delivers
Record-Breaking Images
of Solar Flares, Coronal Loops
Relive the excitement
of 2024’s Total Solar Eclipse
Watch the recording of NSF NSO’s
Livestream “The Science of an Eclipse”
Inouye
Solar Telescope
First Light
See the Sun Like Never Before
NSO’s Integrated Synoptic Program (NISP)
Observing the Sun
for more than half a century
Follow our blog
for latest news
and updates
NSF’s Inouye Solar Telescope
The most powerful
solar telescope on Earth
Latest Images of the Sun
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NSF-NOAA GONG Maps Hidden Magnetism on the Sun’s Far Side
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GONG
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NISP
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Telescopes
New Solar Flare Observations Challenge Leading Theories
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DKIST
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Uncovering the Waves That Power the Sun’s Outer Atmosphere
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DKIST
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Telescopes
Dunn Solar Telescope: A 50 Year Retrospective
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Dunn Solar Telescope
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Observatory
Telescopes
The Sun’s Ultraviolet Mood Swings Are More Extreme Than We Thought
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When the Sun Blinked, GONG Was There
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GONG
NISP
30 Years of GONG: The Enduring Legacy of the U.S. National Science Foundation National Solar Observatory Solar Monitoring Network
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GONG
NISP
A Bright Beginning: Maui High School Students Get a First Look Inside the NSF Inouye Solar Telescope
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DKIST
Latest News
Two Eyes on the Sun: Unveiling Solar Dynamics with Coordinated Observations
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DKIST
Latest News
Telescopes
The Sun’s Atmosphere Pulses With Hidden Twisting Waves
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DKIST
Latest News
Data at Record Speed: NSF Inouye Solar Telescope Transfers 41.5 TB in a Single Day
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DKIST
30 Hours Worth of Cona Science-Data Released
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Latest News
NSO Receives Funding from NSF to Design the Next-Generation Solar Observing Network to Advance Solar Science and Space Weather Forecasting
Blog
Latest News
Press Releases
Sun’s Fireworks: How the Inouye Solar Telescope Is Revealing the Secret Life of Solar Flares
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DKIST
NSF National Solar Observatory Welcomes 2025 Brinson Postdoctoral Fellow in Solar Physics
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DKIST
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Press Releases
The NSF Inouye Solar Telescope Delivers Record-Breaking Images of Solar Flare, Coronal Loops
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DKIST
Latest News
Press Releases
A New Study Reveals We Could Be Underestimating the Sun’s Magnetic Field — By Half
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Small-Scale Solar Explosion Reveals Big Clues About Magnetic Reconnection
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Latest News
Magnetic Curtains on the Sun: NSF Inouye Solar Telescope Reveals Ultra-Fine Striations in Solar Surface
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DKIST
Latest News
Press Releases
“Raindrops in the Sun’s Corona”: New Adaptive Optics Shows Stunning Details of our Star’s Atmosphere
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Latest News
Press Releases
Largest Imaging Spectro-Polarimeter Achieves First Light at the NSF Daniel K. Inouye Solar Telescope
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Latest News
Press Releases
Nearly 1,000 Maui Students Embark on a Journey Through the Universe with NSO
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A Journey in Solar Astronomy: Hanna Rose Shell Becomes NSO’s First Artist-in-Residence
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NSO Scientist Uncovers New Hydrogen Signatures in Solar Flares
Blog
Latest News
Harnessing AI for Space Weather Forecasting with NSF GONG Data
Blog
Latest News
New Research Finds Gigantic Electric Fields Driving Solar Explosions
Blog
Latest News
NSF SOLIS Nears First Light
Blog
Latest News
New Insights into Solar Flares with the NSF Daniel K. Inouye Solar Telescope
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DKIST
Latest News
Groundbreaking Achievement: NSF Daniel K. Inouye Solar Telescope Produces its First Magnetic Field Maps of the Sun’s Corona
Blog
Latest News
Press Releases
Shadow the Scientists: Observing the Sun with the NSF Inouye Solar Telescope
Blog
BSA REU Internship Wrap-Up: Four Students Complete Summer Research with NSO Mentors
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Celebrating the 2024 Akamai Workforce Initiative Cohort
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The Dynamic Interplay of Heat, Sound, and Magnetic Fields in the Sun
Blog
DKIST
Latest News
NSO Heads to the 2024 SPIE Astronomical Telescopes + Instrumentation Conference
Blog
Revisiting the 2024 Total Solar Eclipse
Blog
At the Intersection of Research and Discovery with the Boulder Solar Alliance’s Research Experience for Undergraduates
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NSF’s Inouye Solar Telescope’s VTF Completes Extraordinary Transcontinental Expedition
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Latest News
The Eclipse as Seen by the Daniel K. Inouye Solar Telescope in Maui
Blog
Remembering Dr. Irene González Hernández with an Honorary Prize in her Memory
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Latest News
The Inouye Solar Telescope Unveils a New Window into the Solar Corona
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Latest News
National Solar Observatory Brings Maui on a Journey Through the Universe
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Exciting Events
For Educators
For Public
Outreach
Unveiling the Mysteries of the Solar Chromosphere with the Daniel K. Inouye Solar Telescope
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Latest News
AURA Appoints Christoph Keller as next National Solar Observatory Director
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Latest News
Unraveling Solar Symphony: Quasi-Biennial Oscillations Dance to Their Own Beat in Cycles 23 and 24
Blog
Latest News
Unique CU Boulder, NSO collaboration allows journey into varied solar physics research paths
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Hale Fellowship
Latest News
The 2023 Annular Solar Eclipse Thrills Scientists and Enthusiasts Alike —Ahead of the 2024 Total Solar Eclipse
Blog
Latest News
Queen’s University Belfast researchers discover new patterns in Sun’s layers with implications for longstanding solar mystery
Blog
Latest News
Press Releases
Former NSO Director, Steve Keil Passes Away
Blog
Latest News
Press Releases
Magnetic fields in solar plage regions: insights from high-sensitivity spectropolarimetry
Blog
Latest News
End of Summer Update on GONG Facilities
Blog
GONG
Latest News
NISP
The Sun’s Polar Magnetic Field will Soon Flip – And GONG is Watching
Blog
Latest News
Experiencing the 2023 Australian Total Solar Eclipse
Blog
NSF’s GONG Facilities Helped Parker Solar Probe In Finding Source of Solar Winds
Blog
NISP
New Images Released by NSF’s Daniel K. Inouye Solar Telescope
DKIST
Latest News
Press Releases
Journey Through the Universe Returns to Maui Classrooms
Blog
Inouye Solar Telescope’s ViSP reveals insight into properties of an umbral flash in new study
Blog
Inouye Solar Telescope Second Proposal Call Summary
Blog
Scientists Develop New Model to Estimate Solar Irradiance Variation Over the Last Five Centuries
Blog
New spectral views of the infrared corona achieved by Inouye Solar Telescope’s Cryo-NIRSP
Blog
DKIST
Telescopes
Confirmed: Multiple Active Regions Turned to Earth, Solar Activity Ramps Up
Blog
NISP
NSF’s Daniel K. Inouye Solar Telescope Unveils First Publicly Available Datasets
DKIST
Press Releases
Adaptive Optics Upgrade Plan to Give Inouye Solar Telescope a Wider View of the Sun
Blog
NSF’s Mauna Loa GONG Facility Temporarily Shut Down Due to Volcanic Activity
Blog
Studying Magnetic Cancellation May Lead to Greater Understanding of Switchbacks, Other Magnetic Phenomenon
Blog
Eyes in the Dark: How GONG’s Data Helped Guide Parker Solar Probe’s 13th Perihelion
Blog
U.S. National Science Foundation Celebrates the Inauguration of its Daniel K. Inouye Solar Telescope
Blog
DKIST
Press Releases
IAUS 372: The Era of Multi-Messenger Solar Physics
Blog
The Evolution of Extreme Solar Events Research
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Research
Science
NSO Integrated Synoptic Program Awarded NSF ANSWERS Grant
Blog
Scientists Developed New Model to Predict Sunspot and Plage Coverage for Solar Cycle 25
Blog
Happy Earth Day: Five Reasons Why We Need Earth and Earth Needs the Sun
Blog
Scientists Conclude Chromospheric Spectral Observations Can Be Used to Detect the Initial Phase of Solar Filament Eruptions
Blog
Staff Highlight: Brialyn Onodera – Mechanical Engineer
Blog
Staff Highlight
U.S. NSF’s Daniel K. Inouye Solar Telescope Begins Science Operations Commissioning Phase
Blog
DKIST
Press Releases
Staff Highlight: Anastasia Alexov – Science Operations Manager
Blog
Staff Highlight
NSO Team Identify Large Active Region on the Farside of the Sun
Blog
Staff Highlight: Aimee Szabo – Sr. Electrical Engineer
Blog
Staff Highlight
Dr. Adam Kowalski Awarded the 2022 Karen Harvey Prize
Press Releases
Dr. Jack Zirker, former Director of Sacramento Peak Observatory , dies at 94
Blog
Researchers Observe Massive CME on Distant, Sun-Like Star
Blog
DKIST Begins its Operations Commissioning Phase
Blog
The National Solar Observatory Endorses the ASTRO2020 Decadal Survey
Blog
National Solar Observatory awarded prestigious Brinson Prize Fellowship
Blog
Press Releases
Inouye Telescope project passes final construction review
Blog
DKIST
NSF’s GONG Observations of Long-period Oscillations of the Sun
Blog
NISP
NSF’s National Solar Observatory breaks ground on new telescope site in California
Blog
NISP
Press Releases
SOLIS
My Experience as an Undergraduate Researcher Preparing Calibrations for DKIST Observations
Blog
Outreach
Exploring the Sources of the Solar Wind with Parker Solar Probe and NSO/GONG
Blog
GONG
NISP
Critical solar observations from NSF’s GONG network now maintained by NOAA’s Space Weather Prediction Center
Blog
GONG
NISP
Press Releases
Inouye Solar Telescope’s Critical Science Plan released
Blog
DKIST
Highlighted Science
Research
Science
Scientific Papers
Scientific Research
Humongous flare from sun’s nearest neighbor breaks records
Blog
Research
NSF donates 21 housing units to White Sands Habitat for Humanity
Blog
Press Releases
Former director of NSO Dr. Jacques Beckers has passed away
Blog
NSF’s GONG program aids NASA’s Parker Solar Probe during its latest close encounter with the Sun
Blog
GONG
NISP
Inouye Solar Telescope Data Handling System performs first end-to-end data transfer
Blog
DKIST
NSO’s Dr. Thomas Rimmele wins SPIE’s Goddard Award in Space and Airborne Optics
Blog
Press Releases
Inouye Solar Telescope Ambassador unveils how tiny, cool magnetic loops make the Sun’s atmosphere so hot
Blog
Research
Inouye Solar Telescope Releases First Image of a Sunspot
Blog
DKIST
Press Releases
NSF’s National Solar Observatory Predicts a Large Sunspot for Thanksgiving
Blog
Press Releases
NSO Scientists predict a large sunspot for Thanksgiving
Blog
NISP
Research
How the NSO predicted a new sunspot group before it rotated into view
Blog
NISP
Research
Community Response to the DKIST Cycle 1 Call for Proposals
Blog
DKIST
“Becoming a Super Solar Scientist!” – NSO WISER Live Stream for Planets Foundation’s AstroFest
Blog
NSO scientists participate in celebration of the 25th anniversary of GONG at the Udaipur Solar Observatory in India
Blog
NISP
Sunspot cycle is stabilizing, according to worldwide panel of experts
Blog
Press Releases
NSO Astronomers to play key role in two new spacecraft mission concept studies
Blog
NISP
NSO Goes Virtual – 3rd Data Training Workshop held online in preparation for observing call from NSF’s Inouye Solar Telescope
Blog
DKIST
Alexei Pevtsov Named as New NSO Associate Director for Synoptic Program
Blog
NISP
Dr. Thomas Rimmele, Director of NSF’s Inouye Solar Telescope, Named One of Fast Company’s Most Creative People in Business
Blog
Dunn Solar Telescope Catches an Erupting Filament
Blog
Research
Frank Hill Retires from the NSO
Blog
NISP
Modeling the Effects of Observational Gaps in the Sun’s Acoustic Modes
Blog
Research
A new detection of Silicon+9 linear polarization for studying the solar corona
Blog
DKIST
Engineering
Research
Telescopio Solar de la Fundación de Ciencias de EEUU produce sus primeras imágenes
Blog
DKIST
First Light
Press Releases
NSF’s newest solar telescope produces first images
Blog
Press Releases
NSF’s Dunn Solar Telescope helps international team crack 60-year-old mystery of Sun’s magnetic waves
Blog
DKIST
Engineering
Research
Do we see a dawn of solar cycle 25?
Blog
NISP
Outreach
Research
The Acceleration Mechanism for Solar Energetic Particles
Blog
Research
NSO Team Works on Historical Sunspot Digitization
Blog
Research
NSO researcher and CU Boulder astrophysics professor selected to receive NASA award
Blog
Outreach
Research
Using a New Thermometer to Take Temperature of Solar Chromosphere
Blog
Research
Citizen CATE in Chile for 2019 Eclipse
Blog
DKIST
Outreach
Sensing the Sun’s coronal magnetism by measuring its rain
Blog
DKIST
Engineering
Research
DKIST Professionals Talk Telescope Technology and STEM Careers with K-12 Students During Hawaiʻi World of Work Week
Blog
DKIST
Outreach
Staff Highlight: Tetsu Anan – Post Doc Research Assistant for DKIST
Blog
DKIST
Outreach
To Image the Sun DKIST Starts With the Stars – Integration and Testing of M1 and M2 Assembly with Night-time Observation
Blog
DKIST
Engineering
Staff Highlight: Mario Javalera Sanchez – Facility Thermal System Piping Superintendent
Blog
DKIST
Outreach
Verifying a Crucial Step in Synchronizing Camera Exposure to Polarization Modulator Positions
Blog
DKIST
Engineering
DKI Solar Telescope Data Center Completes Critical Design Review
Blog
DKIST
Engineering
Staff Highlight: Mackenzie Stratton – Assistant Engineer
Blog
DKIST
Outreach
Staff Highlight: Claire Raftery – Head of Education, Outreach and Communications
Blog
DKIST
Outreach
Staff Highlight: Chriselle Galapon – Facility Thermal Systems (FTS) Engineer
Blog
DKIST
Outreach
Staff Highlight: Hillary Head – Science Operations Specialist
Blog
DKIST
Outreach
Staff Highlight: Sarah Jaeggli – Assistant Astronomer
Blog
DKIST
Outreach
Staff Highlight: Stacey Sueoka – Optical Engineer
Blog
DKIST
Outreach
Staff Highlight: Brialyn Onodera – Thermal Systems Assistant Engineer
Blog
DKIST
Outreach
National Solar Observatory’s Solar Observatory Council Member Wins 2019 Hale Prize
Blog
Outreach
Study shows temporal patterns of meridional flows are precursors of magnetic activity in solar cycle
Blog
NISP
Research
Reproducing Variations of the Solar Radiative Emissions – IAU Discussions
Blog
Research
Science Teams Awarded Space at CTIO for 2019 Eclipse
Blog
Research
National Solar Observatory molding the future of solar physics research thanks to new NSF funding
Blog
Press Releases
National Science Foundation to Fund New Windows on the Universe Center for Astronomy Outreach at Kitt Peak National Observatory
Press Releases
A Multi-Messenger Era For Solar Astronomy – The Revolution Of DKIST And Parker Solar Probe
Blog
DKIST
Engineering
Outreach
Research
NSO scientists investigate variations in the Sun’s internal temperature and brightness
Blog
Engineering
NISP
Research
DKIST M1 Mirror Successfully Aluminized
Blog
DKIST
Engineering
A Rain Gauge for the Sun – Computer Vision Tracking of Coronal Rain
Blog
Research
GONG Engineering Site at CU Boulder campus sees first light!
Blog
Engineering
NISP
Research
Solar Scientists Question and Answer Panel to follow moderated by John Grunsfeld
Blog
DKIST
Engineering
Outreach
Alfvén wave dissipation in the solar chromosphere
Blog
Engineering
Research
Space Weather Forecast for Santa Claus
Blog
Engineering
Outreach
NSO/DKIST Embarks on Community-Led Science Development Plan
Blog
DKIST
Engineering
Outreach
Science
DKIST Polarimetry
Blog
DKIST
Engineering
NSO Brings the Total Solar Eclipse to Capitol Hill
Blog
Outreach
First Taste of Citizen Science Video Capturing Entire U.S. Transit of Solar Eclipse
Blog
Eclipse
Press Releases
Sun Science
Explore the Total Solar Eclipse
Blog
Outreach
NISP Status Update: Relocation of GONG engineering instruments from Tucson to Boulder
Blog
NISP
Research
DKIST Construction
Blog
DKIST
Engineering
Welcome to the Future of the NSO
Blog
Outreach
DKIST August 2017 Transport
Blog
National Solar Observatory Predicts Shape of Solar Corona for August Eclipse
Blog
Eclipse
Press Releases
Sun Science
NSF to fund a nationwide effort to capture the eclipse
Blog
Press Releases
Next generation of adaptive optics widens the field for observations of the Sun
Press Releases
DKIST Response to Hawaii Supreme Court Decisions SCWC-13-0000182 and SCWC-13-0003065
Blog
National Solar Observatory’s Daniel K. Inouye Solar Telescope On Track to Provide Ground-Breaking Observations of the Sun
Blog
DKIST
Press Releases
National Solar Observatory celebrates relocation to Boulder, CO
Blog
DKIST
GONG
Press Releases
NSO Prepares for Mercury Transit
Blog
Exciting Events
Press Releases
Maui Views March 8th partial solar eclipse
Blog
Eclipse
Exciting Events
Press Releases
Successful CLASP rocket flight supported by DST observations
Press Releases
Second transport of large enclosure components for DKIST reaches Haleakalā
Blog
Large enclosure components for DKIST reach Haleakalā
Blog
In response to protests that affect Daniel K. Inouye Solar Telescope construction
Blog
Sunspots Like Pinwheels
Blog
Fickle Fields: Are Transient Magnetic Reversals Real?
Blog
Ground-based Telescopes Observe Largest Solar Flare of 2014
Flares
Press Releases
Sun Science
Solar Telescope Named for Late Senator Inouye
DKIST
Press Releases
Putting Uncertainties to Space Weather Forecast
Blog
SOLIS Observations Give New Insights into Space Weather
Press Releases
SOLIS
Sun Science
Scientists Discover Solar Precursors of Where, When Sunspots will Emerge
GONG
Press Releases
Sun Science
Sunspots
AURA Announces the Selection of Dr. Valentin Pillet as National Solar Observatory Director
Press Releases
NSO Announces Start of ATST Site Construction
Blog
First High-Resolution H-Beta Solar Image
Blog
First High-Resolution H-Beta Solar Image
DKIST
Dunn Solar Telescope
Press Releases
Sun Science
SOLIS magnetograms are used to predict shape of corona for total solar eclipse
Eclipse
NISP
Press Releases
SOLIS
ATST Casting of the Final Blank
Blog
NSO Data Used to Forecast January’s Major Geomagnetic Storm
CME
Coronal Mass Ejections
NISP
Press Releases
Sun Science
“Cool” Gas May Form and Strengthen Sunspots
Press Releases
Sun Science
Sunspots
Colorful Solar Instrument Treks East for a New Career
Kitt Peak
McMath-Pierce
Press Releases
Sun Science
Magnetic “Topography” Helps Predict Solar Flares
Flares
Press Releases
Sun Science
NSO Names Key Managers
Press Releases
NSO Names Key Managers
Blog
Hunting the Source of “Stealth” Solar Storms
Press Releases
Sun Science
Dr. Stephen Keil Announces the End of his Term as NSO Director
Press Releases
NSO Headquarters Chosen
Press Releases
What’s Down with the Sun? Major Drop in Solar Activity Predicted
Press Releases
Evidence that Temporal Changes in Solar Subsurface Helicity Precede Active Region Flaring
Blog
A Microscope for the Sun: ATST
Blog
Comparing Magnetic Fields in the Solar Photosphere and Chromosphere at Equatorial and Polar Latitudes
Blog
Solar Polar Vortex?
Blog
Telescope spots solar tsunami
Press Releases
NSO Response to the NSF Senior Review
Press Releases
Virtual Camera Offers Flexibility for Solar Observers
Press Releases
Onset of Next Solar Activity Cycle Observed
Press Releases
Peeking Behind the Veil of Venus
Press Releases
Dr. Richard B. Dunn Passes Away
Press Releases
Adaptive Optics Produces Ultrasharp Images of Sunspot
Press Releases
Dr. A. Keith Pierce Passes Away
Press Releases
Haleakalā, HI, Endorsed for the Inouye Solar Telescope
Press Releases
Virtual Solar Observatory now available for “one-stop data shopping”
Press Releases
Haleakalā, HI, recommended for the Advanced Technology Solar Telescope
Press Releases
“Think Big” is Plan at Solar Physics Conference
Press Releases
Site Survey for World’s Largest Optical Solar Telescope Passes Midpoint
Press Releases
ATST Design Update
Press Releases
Infrared Camera Peeks Below the Visible Surface of the Sun
Press Releases
Combined Optical Techniques Confirm Magnetic Shear in Sunspot Motion
Press Releases
New Instrument Makes Highest-Resolution Magnetic Measurements Inside a Sunspot
Press Releases
New Eyes on Old Telescope Provide Insight into Solar Storm
Press Releases
Modern Solar Telescope Network’s View of Venus Passage Will Help Students Use Web to Recall Historical Era
Press Releases
Scientists to plan International Heliophysical Year
Press Releases
Peering into the Heart of a Storm
Press Releases
Three Sites Selected as Candidates for World’s Largest Solar Telescope
Press Releases
ATST Interim Site Survey Report Released
Press Releases
Sun acts up on its way to a quiet time
Press Releases
Two Major Sunspot Regions Viewed from Kitt Peak, AZ
Press Releases
Smoothing Out the Wrinkles in our View of the Sun
Press Releases
Sun Remains Active Late in 11-year Cycle
Press Releases
GONG Observes the Transit of Mercury
Press Releases
Modern solar telescope network’s view of Mercury passage will help students use web to recall historical era
Press Releases
Sun offers Halloween “trick or treat”
Press Releases
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