Dr. BJL
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drbjl.bsky.social
Dr. BJL
@drbjl.bsky.social
Solar & heliospheric physicist @ UCLA
Reposted by Dr. BJL
One of the largest coronal holes observed by SDO is now facing Earth!

#heliophysics
April 21, 2025 at 1:42 AM
Reposted by Dr. BJL
The only person who can tell you what colour to paint your models is you.
April 14, 2025 at 7:29 AM
Reposted by Dr. BJL
Late Saturday Apr 12 to early Sunday Apr 13 the Sun has unleashed 2 filament eruptions, south-east and south-west of the central meridian. The resulting #solarstorms are due to arrive at Earth late Tuesday Apr 15, but they are slow and we do not expect a strong geomagnetic response.
(NASA/SDO 304)
April 14, 2025 at 11:33 AM
Reposted by Dr. BJL
Whatever it was... we want to do it again!
April 12, 2025 at 7:09 PM
Reposted by Dr. BJL
An expanded view of yesterday’s impressive #SolarFlare and coronal mass ejection. The video shows timelapses of data from SDO, SUVI, and SOHO respectively, each revealing mesmerising views of different plasma physics processes! An impressive event. #spaceweather
March 30, 2025 at 4:04 AM
Reposted by Dr. BJL
Hey, everyone! Check out my recent appearance on the Do Good Podcast - "The Importance of Truthfulness in Science." I discuss my journey chasing the northern lights, the science of aurora, and combating misinformation in space weather.

youtu.be/YEAP3AhdlGs
The Do Good Podcast: Episode #3 - The Importance of Truthfulness in Science
YouTube video by The Do Good Pod
youtu.be
March 29, 2025 at 5:18 AM
Reposted by Dr. BJL
Check out my recent paper, just published in ApJ! ☄️
@sarahrosewatson.bsky.social has just published a nice study of how comet tail disconnections are associated with particular structures in the solar wind (the heliospheric current sheet). And how data assimilation enables us to better forecast these structures.

iopscience.iop.org/article/10.3...
March 27, 2025 at 1:52 PM
Reposted by Dr. BJL
hello ok i am awake what did i miss
tell me every thing
March 26, 2025 at 2:59 AM
And here is another movie!
March 26, 2025 at 5:58 AM
Reposted by Dr. BJL
Presented the studies that me and my PhD student Harry Lewis have been doing assessing the specific plasma physical processes responsible for dissipating turbulent energy in collisionless plasmas yesterday at #AGU24!

Lots of fantastic discussions with everyone afterward!
December 13, 2024 at 2:45 PM
Reposted by Dr. BJL
Full-size replica of the Parker Solar Probe spacecraft at #AGU24! ☀️🛰️
December 11, 2024 at 7:54 PM
Reposted by Dr. BJL
Kicking off this Bluesky thing with a fresh new paper! We analysed and modelled a CME that impacted four spacecraft spread out between ~0.4 and 1 au from the Sun—we investigated radial evolution and whether measurements at an inner probe improve predictions at an outer one: doi.org/10.1093/mnra...
A coronal mass ejection encountered by four spacecraft within 1 au from the Sun: ensemble modelling of propagation and magnetic structure
ABSTRACT. Understanding and predicting the structure and evolution of coronal mass ejections (CMEs) in the heliosphere remains one of the most sought-after
doi.org
December 6, 2024 at 2:31 PM