-- News And Information About Meteor Showers ...

Solar wind speed: 538.0 km/sec density: 2.86 protons/cm3 more data: ACE, DSCOVR Updated: Today at 0256 UT
X-ray Solar Flares 6-hr max: C2 1458 UT Jan03 24-hr: C3 0144 UT Jan03 explanation | more data Updated: Today at: 1505 UT
Daily Sun: 03 Jan 26 Expand: labels | no labels Sunspot 4324 has a delta-class magnetic field that poses a threat for X-class solar flares. Credit: NASA/SDO Sunspot number: 124 What is the sunspot number? Updated 03 Jan 2026
Current Auroral Oval:
Switch to: Europe, USA, New Zealand, Antarctica Credit: NOAA/Ovation
Planetary K-index Now: Kp= 2.00 quiet 24-hr max: Kp= 5.00 storm explanation | more data
Interplanetary Mag. Field Btotal: 5.18 nT Bz: -3.38 nT south more data: ACE, DSCOVR Updated: Today at 0301 UT
Coronal Holes: 03 Jan 26
A new coronal hole is emerging over the sun's northeastern limb. Credit: NASA/SDO | more data

Spotless Days Current Stretch: 0 days 2025 total: 0 days (0%) 2024 total: 0 days (0%) 2023 total: 0 days (0%) 2022 total: 1 day (<1%) 2021 total: 64 days (18%) 2020 total: 208 days (57%) 2019 total: 281 days (77%) 2018 total: 221 days (61%) 2017 total: 104 days (28%) 2016 total: 32 days (9%) 2015 total: 0 days (0%) 2014 total: 1 day (<1%) 2013 total: 0 days (0%) 2012 total: 0 days (0%) 2011 total: 2 days (<1%) 2010 total: 51 days (14%) 2009 total: 260 days (71%) 2008 total: 268 days (73%) 2007 total: 152 days (42%) 2006 total: 70 days (19%) Updated 03 Jan 2026Thermosphere Climate Index today: 22.09x1010 W Warm Max: 49.4x1010 W Hot (10/1957) Min: 2.05x1010 W Cold (02/2009) explanation | more data: gfx, txt Updated 02 Jan 2026

The Radio Sun 10.7 cm flux: 166 sfu explanation | more data Updated 03 Jan 2026

Cosmic Rays Solar Cycle 25 is near its peak, and this is reflected in the number of cosmic rays entering Earth's atmosphere. Neutron counts from the University of Oulu's Sodankyla Geophysical Observatory show that cosmic rays reaching Earth are slowly declining--a result of the yin-yang relationship between the solar cycle and cosmic rays. Oulu Neutron Counts Percentages of the Space Age average: today: -8.4% Low 48-hr change: -1.1% Max: +11.7% Very High (12/2009) Min: -32.1% Very Low (06/1991) explanation |more data Updated 02 Jan 2026 @ 0700 UT

SPACE WEATHER NOAA Forecasts
Updated at: 2026 Jan 02 2200 UTC
FLARE 0-24 hr 24-48 hr
CLASS M 50 % 50 %
CLASS X 10 % 10 %
Geomagnetic Storms: Probabilities for significant disturbances in Earth's magnetic field are given for three activity levels: active, minor storm, severe storm
Updated at: 2026 Jan 02 2200 UTC
Mid-latitudes
0-24 hr 24-48 hr
ACTIVE 30 % 40 %
MINOR 40 % 25 %
SEVERE 25 % 05 %
High latitudes
0-24 hr 24-48 hr
ACTIVE 05 % 10 %
MINOR 15 % 25 %
SEVERE 85 % 65 %
Saturday, Jan. 3, 2026
What's up in space

This is an AI Free Zone: Text created by Large Language Models is spreading across the Internet. It's well-written, but frequently inaccurate. If you find a mistake on Spaceweather.com, rest assured it was made by a real human being.

GEOMAGNETIC STORM FORECAST (UPDATED): Geomagnetic storms are possible on Jan. 3-4 when a pair of CMEs is expected to hit Earth's magnetic field. CME #1 was launched by a powerful M7-flare on Dec. 31st. CME #2 followed on Jan. 1st, propelled by a weaker but better aimed C6-flare. Their combined impact could cause G2-class geomagnetic storms. The only bad news: Aurora visibility will be reduced by glare from the full Wolf Moon. CME impact alerts: SMS Text

NIGHT OF THE FULL WOLF MOON: This photo looks like it was taken in broad daylight. In fact, it's 100% full Wolf moonlight:

"I did not need my headlamp," says Dr. Tony Phillips, a space weather forecaster who moonlights as a backcountry dogsledder. After sunset on Jan. 2nd, he took a team of three Alaskan huskies into the mountains near Lake Sabrina, California. The waxing full Moon flooded the landscape with so much light, a 2-second cell phone exposure turned night into day.

According to folklore, this weekend's full Moon is the Wolf Moon. It is brighter than normal for three reasons:

1. The Moon is near perigee (closest approach to Earth), making it appear up to ~7% larger and ~15% brighter than average.

2. The Earth-Moon system is near perihelion (closest approach to the sun), brightening the Moon another 3%.

3. Fresh snow reflects as much as 90% of incoming moonlight, making the night feel more like twilight.

"We're going out again on Jan. 3rd," says Phillips. Why? "Because the Moon and Jupiter will be in conjunction," he explains. "We saw them converging on Jan. 2nd, and the view tonight will be even better."

Realtime Space Weather Photo Gallery Free: Spaceweather.com Newsletter

IRON HEART VALENTINE'S GIFT: Valentine’s Day is coming. Do you have a truly far-out gift? The Iron Heart Valentine’s Swing celebrates a love that is strong, steady, and enduring. On Nov. 13, 2025, it flew to the edge of space, floating 100,895 feet above the Sierra Nevada Mountains of central California:

You can have it for $159.95. The gift-boxed swing includes a unique keepsake card featuring the Iron Heart at the top of Earth's atmosphere. Inside, the card tells the story of the flight and certifies that this swing has been to the edge of space.

Earth to Sky Valentine's gifts have flown above 99.7% of Earth's atmosphere, experiencing space-like blasts of cosmic rays, extreme cold, and a wild ride parachuting back to Earth after the balloon explodes. Even Amazon doesn't carry items this far out. And, best of all, all sales support student science projects and STEM education.

Far Out Gifts: Earth to Sky Store All sales support hands-on STEM education

Realtime Comet Photo Gallery Free: Spaceweather.com Newsletter

Realtime Aurora Photo Gallery Free: Spaceweather.com Newsletter

All Sky Fireball Network
Every night, a network of NASA all-sky cameras scans the skies above the United States for meteoritic fireballs. Automated software maintained by NASA's Meteoroid Environment Office calculates their orbits, velocity, penetration depth in Earth's atmosphere and many other characteristics. Daily results are presented here on Spaceweather.com.

On Jan. 02 2026, the network reported 2 fireballs. (2 sporadics)

In this diagram of the inner solar system, all of the fireball orbits intersect at a single point--Earth. The orbits are color-coded by velocity, from slow (red) to fast (blue). [Larger image] [movies]

Near Earth Asteroids
Potentially Hazardous Asteroids (PHAs) are space rocks larger than approximately 100m that can come closer to Earth than 0.05 AU. None of the known PHAs is on a collision course with our planet, although astronomers are finding new ones all the time.
On January 3, 2026 there were 2349 potentially hazardous asteroids.
Recent & Upcoming Earth-asteroid encounters:
Asteroid Date(UT) Miss Distance Velocity (km/s) Diameter (m)
2025 YJ 2025-Dec-28 18.7 LD 7.4 19
2025 YJ9 2025-Dec-28 2 LD 15.7 11
2025 YA8 2025-Dec-28 0.2 LD 10.1 6
2025 YW4 2025-Dec-28 2.9 LD 7.4 28
2021 AB1 2025-Dec-28 10.2 LD 12.3 16
2025 YH9 2025-Dec-28 1.1 LD 12.4 18
2025 YM9 2025-Dec-29 1.1 LD 6.8 7
2025 YK6 2025-Dec-29 13.6 LD 15.6 23
2025 YH6 2025-Dec-30 5.3 LD 9 67
2025 YZ4 2025-Dec-30 7.8 LD 9.8 39
2025 YQ5 2025-Dec-30 14.3 LD 18.4 46
2019 AU 2025-Dec-30 19.3 LD 2.8 16
2025 YU5 2025-Dec-30 5.7 LD 7.6 14
2025 YG9 2025-Dec-30 2.2 LD 8.3 8
2024 AV2 2025-Dec-30 17.9 LD 7 17
2025 YL4 2026-Jan-01 3.8 LD 9.8 16
2025 XC7 2026-Jan-01 8.9 LD 6.6 30
2025 YZ 2026-Jan-02 14.1 LD 6.7 29
2025 YS9 2026-Jan-02 7.7 LD 11.2 21
2025 YT2 2026-Jan-02 14.9 LD 5.5 10
2025 YV6 2026-Jan-03 4.4 LD 5.7 12
2025 YF3 2026-Jan-03 15.4 LD 7 36
2025 YF4 2026-Jan-03 12.6 LD 7.3 22
2025 YN7 2026-Jan-04 6.6 LD 8.2 19
2025 YA4 2026-Jan-04 13.1 LD 15.6 40
2025 YQ7 2026-Jan-04 4.8 LD 7.8 19
2025 YV7 2026-Jan-04 4.4 LD 13.6 16
2014 AF16 2026-Jan-04 8 LD 9.5 34
2025 YY3 2026-Jan-05 18 LD 13.2 32
2025 YM6 2026-Jan-05 12.4 LD 7.5 19
2025 YV1 2026-Jan-05 11.8 LD 16.4 63
2025 XS4 2026-Jan-06 8 LD 6.5 25
2025 YW7 2026-Jan-06 11.9 LD 17.1 64
2023 XM15 2026-Jan-07 15.2 LD 6.9 51
2025 YY8 2026-Jan-08 12.4 LD 6.6 37
2025 YU6 2026-Jan-11 4.1 LD 4.7 23
2025 YL 2026-Jan-11 7.4 LD 3.9 13
2025 YR7 2026-Jan-12 9.3 LD 8.9 24
2022 GR3 2026-Jan-12 14.5 LD 12.9 9
2025 XN1 2026-Jan-14 9.3 LD 4.7 36
2022 OB5 2026-Jan-14 1.7 LD 2.2 6
2025 BL 2026-Jan-17 4.7 LD 6.9 28
2004 MO3 2026-Jan-17 17 LD 10.2 129
2011 AM37 2026-Jan-17 19.8 LD 5.1 4
2025 YX7 2026-Jan-20 19.5 LD 11.5 78
2019 LZ4 2026-Jan-23 14.2 LD 11.6 45
2025 YR1 2026-Jan-27 19.5 LD 4.1 30
2022 AG 2026-Jan-29 13.7 LD 5.3 34
2020 GE 2026-Jan-29 16.2 LD 1.2 8
2023 RX1 2026-Jan-31 8.8 LD 1.2 3
2022 OC3 2026-Jan-31 1.3 LD 3.8 8
2021 CZ5 2026-Feb-09 18.3 LD 9.3 23
2025 CC 2026-Feb-09 17.6 LD 5.1 11
2019 CN2 2026-Feb-11 20 LD 9.2 7
2022 DV 2026-Feb-12 15.4 LD 5 18
1999 AO10 2026-Feb-13 10.5 LD 2.7 59
162882 2026-Feb-14 17 LD 19.2 626
2023 CM2 2026-Feb-21 4.2 LD 11.4 22
2025 DQ 2026-Feb-21 3 LD 6.8 4
2007 DB61 2026-Feb-21 9 LD 8.8 65
2012 XF55 2026-Feb-23 16.3 LD 4 98
2022 EZ6 2026-Feb-24 11.6 LD 6.9 73
2018 RB1 2026-Feb-24 8.3 LD 7.9 9
2011 CL50 2026-Feb-27 13.4 LD 4.5 12
2020 FV4 2026-Feb-27 16.3 LD 8.7 30
2007 DG8 2026-Feb-28 10 LD 9.9 32
2011 EH17 2026-Mar-02 15.8 LD 16.5 39
Notes: LD means "Lunar Distance." 1 LD = 384,401 km, the distance between Earth and the Moon. 1 LD also equals 0.00256 AU.
Cosmic Rays in the Atmosphere

SPACE WEATHER BALLOON DATA: Almost once a week, Spaceweather.com and the students of Earth to Sky Calculus fly space weather balloons to the stratosphere over California. These balloons are equipped with sensors that detect secondary cosmic rays, a form of radiation from space that can penetrate all the way down to Earth's surface. Our monitoring program has been underway without interruption for 10 years, resulting in a unique dataset of in situ atmospheric measurements.

Latest results (Nov. 2024): Atmospheric radiation is sharply decreasing in 2024. Our latest measurements in November registered a 10-year low:

What's going on? Ironically, the radiation drop is caused by increasing solar activity. Solar Cycle 25 has roared to life faster than forecasters expected. The sun's strengthening and increasingly tangled magnetic field repels cosmic rays from deep space. In addition, solar coronal mass ejections (CMEs) sweep aside cosmic rays, causing sharp reductions called "Forbush Decreases." The two effects blend together to bring daily radiation levels down.

.Who cares? Cosmic rays are a surprisingly "down to Earth" form of space weather. They can alter the chemistry of the atmosphere, trigger lightning, and penetrate commercial airplanes. According to a study from the Harvard T.H. Chan school of public health, crews of aircraft have higher rates of cancer than the general population. The researchers listed cosmic rays, irregular sleep habits, and chemical contaminants as leading risk factors. A number of controversial studies (#1, #2, #3, #4) go even further, linking cosmic rays with cardiac arrhythmias and sudden cardiac death.

Technical notes: The radiation sensors onboard our helium balloons detect X-rays and gamma-rays in the energy range 10 keV to 20 MeV. These energies span the range of medical X-ray machines and airport security scanners.

Data points in the graph labeled "Stratospheric Radiation" correspond to the peak of the Regener-Pfotzer maximum, which lies about 67,000 feet above central California. When cosmic rays crash into Earth's atmosphere, they produce a spray of secondary particles that is most intense at the entrance to the stratosphere. Physicists Eric Regener and Georg Pfotzer discovered the maximum using balloons in the 1930s and it is what we are measuring today.

Essential web links
NOAA Space Weather Prediction Center
The official U.S. government space weather bureau
Atmospheric Optics
The first place to look for information about sundogs, pillars, rainbows and related phenomena.
Solar Dynamics Observatory
Researchers call it a "Hubble for the sun." SDO is the most advanced solar observatory ever.
STEREO
3D views of the sun from NASA's Solar and Terrestrial Relations Observatory
Solar and Heliospheric Observatory
Realtime and archival images of the Sun from SOHO.
SolarMonitor.org
information about sunspots based on the latest NOAA/USAF Active Region Summary
Starlink Satellite Statistics
current counts of failed and deployed Starlink satellites from Jonathan's Space Page. See also, all satellite statistics.
The Aerospace Corporation
Authoritative predictions of space junk and satellite re-entries
Daily Sunspot Summaries
from the NOAA Space Environment Center
NOAA 27-Day Space Weather Forecasts
fun to read, but should be taken with a grain of salt! Forecasts looking ahead more than a few days are often wrong.
Aurora 30 min forecast
from the NOAA Space Environment Center
Live Aurora Webcam
from Lights over Lapland
Heliophysics
the underlying science of space weather

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NASA Near Earth Asteroid Home Page
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