u/oldschoolscreenname

I shared this over on r/spaceweather a little while ago and the response was overwhelmingly positive, so I thought some people here might enjoy it too.

I’m a software engineer and space weather enthusiast, and over the past few months I’ve been building an interactive visualization of coronal mass ejections as a passion project. The goal wasn’t to build another forecast site, but to make it easier to understand what’s actually happening between the Sun and the planets.

It uses real NASA and NOAA data to visualize CMEs moving through the inner solar system, along with the planets and the spacecraft that observe them. I recently added an Events section where you can replay historic storms like the Carrington Event, the 2012 Carrington-class near miss, and the 2024 Gannon Storm.

I put a lot of work into making the science as accurate as I could while keeping it approachable for anyone who’s just curious about space weather.

If you check it out, I’d genuinely love feedback, especially if you spot something that could be improved or explained better.

https://www.cmetracker.ai

These were taken from my backyard in northern California from near Sacramento at 10pm PST. KP is currently at 6.

This CME is the main culprit: https://www.cmetracker.ai/?cme=2026-07-02T02%3A36%3A00-CME-001&hide=S

These were taken from my backyard in northern California from near Sacramento at 10pm PST (looking north). KP is currently at 6.

This CME is the main culprit: https://www.cmetracker.ai/?cme=2026-07-02T02%3A36%3A00-CME-001&hide=S

This was taken from my backyard in northern California near Sacramento at 10pm PST. KP is currently at 6.

This CME is the main culprit: https://www.cmetracker.ai/?cme=2026-07-02T02%3A36%3A00-CME-001&hide=S

These were taken from my backyard in northern California from near Sacramento at 10pm PST. KP is currently at 6.

This CME is the main culprit: https://www.cmetracker.ai/?cme=2026-07-02T02%3A36%3A00-CME-001&hide=S

A coronal mass ejection (CME) has left the Sun and is heading toward Earth. It launched from a source region on the solar disk (N17W18) at a speed of about 965 km/s.

Based on current modeling, it could reach Earth around 05:17 UTC on July 3, 2026. Keep in mind this is a model estimate, typically accurate to within about 12 hours, so the actual timing may shift.

If it arrives as expected, geomagnetic activity could peak near Kp 5, a G1 (minor) storm. That means aurora may be possible at high latitudes, including Canada, Alaska, and northern Scandinavia. Your best chance to see it would be from dark, clear skies looking poleward near the estimated arrival time.

See it live: https://www.cmetracker.ai/?cme=2026-06-30T21%3A45%3A00-CME-001&hide=S

I’ve shared this in r/spaceweather, but I often think about the potential impact of a CME, especially near-misses like the Carrington-class event in 2012, through the lens of what would happen to civilization if we lost the power grid for an extended period of time.

This tool was designed to be an educational tool, but is also a good real-time monitor of CMEs inbound to us and their potential to do hard to our infrastructure.

The video I included is playback of the Gannon Storm that happened in May 2024 and caused auroras as low as 20 degrees latitude. I saw them from my back yard in northern California. This one is especially interesting because it demonstrates how space weather can pile up. Slower moving CMEs ejected first, followed by fast moving CMEs, and then they converged at earth's orbit causing a compounding effect.

Anyways, hopefully you all find it helpful. CME Tracker is an educational tool and is available to use freely at cmetracker.ai

This is the May 10–11, 2024 geomagnetic storm, the strongest in about 20 years, replayed in a live space-weather visualizer I made (https://cmetracker.ai).

What you're watching: a coronal mass ejection (CME), a cloud of magnetized plasma, launching from the Sun and sweeping past Earth. The spiral is the Sun's magnetic field dragged outward by the solar wind (the "Parker spiral").

 Data (all public, real-time feeds):

• NASA DONKI — CME & solar-flare catalog
• NOAA SWPC — solar wind measured by the DSCOVR & ACE spacecraft at L1, plus the Kp index
• NASA SDO — solar disk imagery
• NASA OMNI / CDAWeb — the historical solar-wind record that drives storm replays like this one

What it's trying to show, beyond a pretty animation:

• How long a CME takes to cross the ~150 million km to Earth (modeled with simple drag physics)
• Why size isn't everything — a storm only hits hard if the CME's magnetic field points south, against Earth's
• Which magnetic field lines actually connect the Sun to us

 

Gannon pushed visible auroras down to ~20° latitude: Mexico, Puerto Rico, northern India (far below where they normally appear.)

Rapid fire medium speed CMEs all in the same direction and converging at earth's orbit. They are aimed about 90 degree way from us, so there won't be any impact on our magnetosphere. Interesting to watch though.

I made this for myself and some friends because we wanted to track our current levels as the compounds move through their half life. I wanted to share it here. It is totally free to use. peptidebuddy.ai

Hi all, I shared this in r/spaceweather and with a few space science professors. It's proving to be a helpful tool in visualizing coronal mass ejections (CME) from the sun that hit and miss earth. I hope that it can be a resource for this sub too. Free to use, no logins. cmetracker.ai

I've been refreshing NOAA's space weather pages for years and always wanted something that showed the CMEs actually moving instead of just listing numbers, so I built it.

It pulls NASA's catalogued CMEs from the last 30 days and propagates each one outward with a drag-based model tuned to the live solar wind, then estimates when, and whether, each reaches Earth. Alongside that it shows live solar wind speed and Bz, the current Kp, GOES X-ray flares, and today's sunspot regions. There's also an Earth view from the Sun's perspective so you can see what's actually pointed at us.

You can also replay major past events, so you can pull up a big historical storm and watch it propagate instead of waiting for the live feed to do something interesting.

Data comes straight from NASA DONKI/SDO and NOAA SWPC.