ESA Research Fellow at ESTEC. Investigating the Sun's magnetic activity, solar wind connection science, and the spin-down of Sun-like stars. Prev. CEA, Exeter.
Solar Orbiter Nugget @esascience about our recent active region nest study. We used Solar Orbiter as a far side observer from April to October 2022 to survey magnetic activity over the entire solar surface. This shed light on the nesting of active regions: https://t.co/LwBJl6cd8r
Published in @AandA_journal ☀️ Really proud of this work using multi-spacecraft observations (notably @esascience Solar Orbiter) to show how the clustering of magnetic flux emergence (into nests) on the Sun modulates activity and shapes the Heliosphere! https://t.co/bC5SWaZB3i
New paper day! Solar activity formed into three hot spots during solar maximum in 2024! Combining observations from near-Earth and ESA’s Solar Orbiter on the far-side we characterised the impact these region had on space weather and the heliosphere https://t.co/pywf9Th3gH (1/6)
This World Smile Day 🙂, we bring you ....
... Let's Smile, the film 🎞️
Watch the European-Chinese Smile spacecraft come together – assembled in the Netherlands, tested, then launched from French Guiana 👇
https://t.co/uwLTGO2q4P
Inspector Smile is ready for science! 🫡
This is Smile’s first ultraviolet view showing an auroral substorm.
With the ultraviolet camera now operational, Smile becomes the first spacecraft since 2008 to capture the full ring of northern lights around the north pole in ultraviolet light.
1/4
Nesting implies that the solar dynamo prefers certain locations for flux emergence, even at solar maximum. The migration of nests hints that near-surface convection may modulate flux from the interior. Further research will help improve long-term space weather forecasts. (6/6)
New paper day! Solar activity formed into three hot spots during solar maximum in 2024! Combining observations from near-Earth and ESA’s Solar Orbiter on the far-side we characterised the impact these region had on space weather and the heliosphere https://t.co/pywf9Th3gH (1/6)
Nesting evolved into 2025, now with a northern hot spot. Their separation and matching east-west magnetic polarity, reinforced a tilted dipole in the solar corona. By anchoring the coronal magnetic field, active nests created favourable sources for solar wind connectivity. (5/6)
Join us on Wednesday for live coverage of the total solar eclipse!
Live from Javalambre, Spain, from 19:30 CEST with:
🎤 interviews
📹 explainers
🔭 telescope feeds
🚁 drone shots
🔴 live feeds from different locations
Details: https://t.co/C0kgxr2a7d
#EuropeanSolarEclipse
Missing the total solar eclipse on 12 August? We've got you covered.
Join our live broadcast on ESA Web TV 📺
🎤 interviews
📹 explainers
🔭 telescope feeds
🚁 drone shots
🔴 live feeds from different locations
We've put together an exciting programme for you. 1/2
#EuropeanSolarEclipse
As has been our tradition for over 30 years, Predictive Science is predicting the structure of the corona for the upcoming total solar eclipse on August 12, 2026!
https://t.co/RaqD6hDtyR
There are several new features in the model this year, keep reading for details!
Ahead of the total solar eclipse on 12 August, scientists are forecasting the Sun’s corona using advanced 3D simulations.
This animation reveals the magnetic structures shaping the corona and helping improve space weather forecasts. 🌘☀️
🔗https://t.co/62q81RYZPb
@esaoperations
🌘 A total solar eclipse is coming to Europe on 12 August 2026.
Join us in León, Spain, or watch it live on ESA YouTube. #EuropeanSolarEclipse
🔗https://t.co/COCRBpsQeo
A great review of the proposed mechanisms for switchback formation in the solar wind. These strong deflections in the local magnetic field are ubiquitous close to the Sun and have been linked to the heating and acceleration of the solar wind. https://t.co/7aVBbRd8vK
The FIP effect remained consistent between the two atmosphere profiles. However, changes to the acoustic flux and increases in choromspheric turbulence could suppress fractionation, leading to variability in the FIP effect within flaring loops.
New paper day! To et al. studied the elemental fractionation in coronal loops with FIPpy, comparing the First Ionisation Potential (FIP) effect produced in an initial VAL-C chromosphere versus a heated chromosphere following impulsive nanoflare-like events https://t.co/gSp3mdD6wT
3️⃣ solar prominence eruptions captured by Proba-3️⃣
This animation resulted from ASPIICS observing the Sun during an active period on 21 September 2025, with one image taken every five minutes, capturing three prominence eruptions in five hours.
🔗 https://t.co/in0CGkmqpu
@esascience@esaoperations@isro@NASA
Are you (or do you know of) an undergrad with an interest in solar physics? Check out the Leiden/ESA Astrophysics Program for Summer Students. Myself, Andy To and Henrik Eklund invite you to come work with us at ESTEC on "Catching the Solar Wind in Action" https://t.co/yoSiX8gGKQ