In principle, cosmic-ray observations can provide detailed insights into the physical profile of a passing ICME. But despite ...

At times, the sun ejects energetic material into space, which can have consequences for space-based and even ground-based ...

One way to track the solar cycle is by counting the number of sunspots, which are dark, cooler patches on the Sun’s surface.

A complete survey of all the particle and antiparticle activity that goes on during the Sun’s 11-year cycle has found previously unknown ways these particles behave. Cosmic rays coming from outside ...

Cosmic rays, consisting predominantly of high-energy protons and nuclei originating from distant astrophysical sources, interact continuously with the solar wind and the heliospheric magnetic fields.

The cosmos often surprises us, but rarely does it present two such monumental, simultaneous mysteries as the interstellar object 3I/ATLAS and the solar system's silent entry into a dense galactic ...

Surrounding our solar system is a natural and enigmatic cosmic shield called the heliosphere — and a new mission has launched to help astronomers better understand it. Created by the solar wind, a ...