In June 2025, data from NASA’s Voyager 1 and Voyager 2 confirmed a dramatic finding: a region at the edge of the heliosphere with temperatures between 30,000 and 50,000 kelvin. Often described as a “wall of fire,” this boundary—known as the heliopause—marks where the Sun’s solar wind collides with the interstellar medium. The discovery provides an unprecedented look at the …
Read More »NASA’s Voyager Probes Uncover a Scorching 50,000‑Degree “Wall of Fire” at the Edge of the Solar System
