Solar Terrestrial Relations

Solar Orbiter traces superfast electrons back to Sun

The European Space Agency-led Solar Orbiter mission has split energetic particles into two groups, tracing them back to distinct solar outbursts. Researchers found that one type of particle is connected to intense solar flares and the other to larger coronal mass ejections.

NASA, ESA missions help scientists uncover how solar wind gets energy

Scientists have discovered how the Sun's supersonic solar wind receives energy, thanks to a lucky alignment of NASA and ESA spacecraft. The fastest solar winds are powered by magnetic switchbacks, which deposit enough energy to account for heating and acceleration in the solar wind.

Nanohertz gravitational waves are cool but not supercool

A new study published in Physical Review Letters suggests that nanohertz gravitational waves may not originate from supercool first-order phase transitions. Researchers found that such transitions would struggle to complete, shifting the frequency of the waves away from nanohertz frequencies.

GQ GMC-500Plus Geiger Counter

GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.

A simulation finds solutions to a central mystery in space physics

The Vlasiator model demonstrated that two central theories on plasma eruptions in near-Earth space are simultaneously valid: magnetic reconnection and kinetic instabilities. This finding helps understand how these events occur and improves the predictability of space weather.

Coronal mass ejection headed toward Mercury and Venus

A coronal mass ejection was detected heading towards Mercury and Venus on July 1, 2013. The CME is expected to pass by NASA's Messenger, Spitzer, and STEREO-B satellites with only slight particle radiation associated with it.