26 June 2024In the solar wind, it is common to distinguish three categories of electron populations. The core represents the thermal electrons at low energies. The suprathermal electrons of the halo have higher energies and are often represented by kappa distributions. The Strahl is a beam of high-energy electrons that follows the magnetic field lines,...

19 June 2024A total solar eclipse occurred on 2024 April 8th over North America that crossed several parts of Mexico, United States, and ended in the eastern part of Canada (Figure 1). The path of totality provides a unique opportunity to observe the solar corona with the naked eye while the fully occulted solar disk allows for detailed coronal observations...

18 June 2024The hyperactive sunspot region responsible for the beautiful auroras earlier in May was still alive and kicking when it rotated away from Earth’s view. Watching from the other side of the Sun, the ESA-led Solar Orbiter mission detected this same region producing the largest solar flare of this solar cycle. By observing the Sun from all sides,...

5 June 2024We analyse energetic electron fluxes, spectra, pitch angle distributions, associated Langmuir waves, and type III solar radio bursts for 3 events between 0.5 and 1AU to understand what causes modifications in the electron flux and identify the origin and characteristics of features observed in the electron spectrum.

29 May 2024Solar Cycle 25 is ramping up towards peak solar activity. On April 23-24, 2023, Earth experienced its first severe geomagnetic storm in eight years, marked by the Dst index reaching -213 nT and the Kp index exceeding 8, and creating auroras as far south as Texas, USA. The CME was tracked by numerous spacecraft and instruments, providing a rich...

28 May 2024ESA’s Solar Orbiter made the first ever connection between measurements of the solar wind around a spacecraft to high-resolution images of the Sun’s surface at a close distance. The success opens a new way for solar physicists to study the source regions of the solar wind.

22 May 2024Space weather has the potential to significantly disrupt human technology both in space and on the ground, including loss of satellites, damage to power grids and communication blackouts. Fortunately, many of these effects can be mitigated with preventative measures should the arrival time and severity of the storm be known in advance. Since the...

15 May 2024In this research, we leverage new observations obtained by the Spectrometer/Telescope for Imaging X-rays (STIX) onboard Solar Orbiter combined with microwave observations from the ground-based Expanded Owens Valley Solar Array (EOVSA) to study the spatial evolution of QPPs in time and energy.

4 April 2024On 8 April 2024, a great swath of the United States and Mexico will experience a total solar eclipse, with viewers getting the rare chance to see the Sun’s stunning outer atmosphere.