NASA Space Alerts

It’s #SunDay! Here’s your space weather report for the week of July 3 - July 9: • 1 X-class flare • 36 M-class flares • 3 C-class flares • 42 coronal mass ejections • 1 geomagnetic storm This video from NASA’s Solar Dynamics Observatory (SDO) shows the week’s activity. The Sun celebrated the fourth of July with a big bang, emitting an intense X-class solar flare (go.nasa.gov/4y5m4xp) and a burst of M-class flares. You can see the show starting at about 0:49 in the video. Learn more about space weather: go.nasa.gov/4bLKwte

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.

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.

A solar fireworks show! 🎇 The Sun emitted a strong solar flare on July 4, peaking at 4:41 p.m. ET. NASA’s Solar Dynamics Observatory captured an image of the event, which was classified as X1.3. The same view from the spacecraft's AIA 131 channel is shown here colorized in red, white, and blue: go.nasa.gov/4y5m4xp

It’s #SunDay! Here’s your space weather report for the week of June 26 - July 2: • 1 X-class flare • 24 M-class flares • 50 coronal mass ejections • 0 geomagnetic storms This video from NASA’s Solar Dynamics Observatory (SDO) shows the week’s activity. The Sun put on its own fireworks show this week! 🎇 Most of this week’s flare activity came from Active Region 14479, which unleashed a barrage of M-class flares and one X-class flare, visible here beginning at about 2:09 in the video. Learn more about space weather: go.nasa.gov/4bLKwte

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.

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.

The Sun emitted a strong solar flare on June 30, peaking at 4:50 p.m. ET. NASA’s Solar Dynamics Observatory captured an image of the event, which was classified as X1.1.

Today, June 30, is also National Meteor Watch Day! Celebrate with us by heading outside on a clear evening and spending some time under the stars. Learn more about meteors and asteroids on our latest #WatchTheSkies blog: go.nasa.gov/4wauX6Y

🦖The dinosaurs didn’t have a space program. NASA’s Planetary Defense Program finds and tracks potentially hazardous asteroids and tests methods to keep us safe on Earth. This International Asteroid Day, learn more about our planetary defenders: plus.nasa.gov/video/planetar…

It’s #SunDay! Here’s your space weather report for the week of June 19 - 25: • 4 M-class flares • 0 C-class flares • 42 coronal mass ejections • 0 geomagnetic storms This video from NASA’s Solar Dynamics Observatory (SDO) shows the week’s activity. All the action this week comes from two clustered active regions, AR14472 and AR14473. You can see them rotate onto the Sun’s disk from the Eastern limb (left side of the Sun) starting at about 0:30 into the video, and continue with several flares and bright coronal loops through about 1:30. Quite a show! 🤩 Learn more about space weather: go.nasa.gov/4bLKwte

#MeteorSighting: Eyewitnesses in several U.S. states across the southeast reported a bright fireball on the night of June 14 at 10:26 p.m. CDT. The meteor, which was also captured by three NASA meteor cameras, was first spotted above Tupelo, Mississippi, moving to the northwest at 56,000 mph. It traveled 300 miles before disintegrating above the Mark Twain National Forest in Missouri. The object moved too fast and was too small to produce meteorites. More on this fireball: go.nasa.gov/4gmBAhS Eyewitness accounts supplied by the American Meteor Society

It’s #SunDay! Here’s your space weather report for the week of June 5 - 11: • 1 M-class flare • 5 C-class flares • 36 coronal mass ejections • 1 geomagnetic storm (as of June 12, though another one is currently forecast for June 13) This video from NASA’s Solar Dynamics Observatory shows the week’s activity. This week’s most powerful flare was an M1.8 on June 6, which erupts from the southeastern (lower left) region of the Sun’s disk at about 0:42 in this video. That eruption also produced a coronal mass ejection that reached Earth three days later, but the bulk of the blast was oriented to the south and east of Earth, so the effect on our planet was minimal. Learn more about solar flares and coronal mass ejections: go.nasa.gov/4bLKwte

It’s #SunDay! Here’s your space weather report for the week of May 29 - June 4: • 1 X-class flare • 6 M-class flares • 47 coronal mass ejections • 0 geomagnetic storms This video from NASA’s Solar Dynamics Observatory (SDO) shows the week’s activity. This week’s main event was the X-class flare on June 3, appearing at 2:26 in the video. Though that flare was this week’s brightest event, a few seconds before at 2:20 in the video, an M7-class flare erupts that might appear to the human eye to be even more impressive. In part, that’s because of the nice view of the burst of solar plasma (ultimately producing a coronal mass ejection) that erupts from the region right after the flare. Wow! 🤩 Learn more about space weather: go.nasa.gov/4bLKwte

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.

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.

The Sun emitted a strong solar flare on June 3, peaking at 7:28 a.m. ET. NASA’s Solar Dynamics Observatory captured an image of the event, which was classified as X1.0. go.nasa.gov/4o5POFG

#MeteorSighting: Eyewitnesses in Ohio and Michigan reported a bright meteor on Monday, June 1, at 10:41p.m. EDT. The data puts first detection of the fireball above the Ohio area near Lima. The meteor moved north-northwest at approximately 49,900 mph before disintegrating above the area just west of Lansing, Michigan. More on this fireball: fireballs.ndc.nasa.gov/skyfalls/event… Eyewitness accounts supplied by the American Meteor Society

UPDATE: @NASA can confirm a fireball over New England at 2:06 p.m. EDT on Saturday, May 30, 2026. The meteor was about 5 feet (1.6 meters) in diameter with a mass of 5.6 metric tons and entered Earth’s atmosphere at roughly 42,000 mph. The meteor traveled through the atmosphere from northwest to southeast for 26 miles before breaking up at an altitude of 31 miles and producing a meteorite fall into Cape Cod Bay. Based on the latest data, the energy released at breakup is estimated to be equivalent to about 230 tons of TNT, which accounts for the sonic boom. Have questions? Check out our fireball FAQs: go.nasa.gov/4mtUQuX

NASA's planetary defense network watches the skies for objects of all sizes - and specifically is tasked with finding objects 140 meters and larger which can cause widespread damage. Meteoroids, like this one over New England, are much much smaller. Almost impossible to track in space, they do not survive passage through our atmosphere intact and do not pose a hazard.

@NASASpaceAlerts @NOAA How could this NEO not be detected by NASA? You're tracking thousands. How come you could not give a heads up that it was on a collison course with the earth?

#MeteorSighting: Eyewitnesses in New England and @NOAA’s GOES-19 satellite reported a bright fireball on Saturday, May 30, at 2:06 p.m EDT accompanied by a loud noise. The meteor appears to have fragmented at an altitude of 40 miles over northeast MA and southeast NH. The energy released at breakup is estimated to be equivalent to about 300 tons of TNT, which accounts for the loud noise. Eyewitness accounts supplied by the American Meteor Society.