Articles for tag: astrophysics, Heliophysics, Solar Plasma, Space Weather, Sun South Pole

bottom of the sun

Sun’s Hidden Face: Humanity Views the Bottom of the Sun for the First Time

Suhail Ahmed

The Sun’s poles have long been a cosmic mystery buried from Earth’s perspective by the simple fact that our planet, along with every other spacecraft, orbits within the equatorial plane. Thanks to the European Space Agency’s (ESA) Solar Orbiter spacecraft, however, mankind has now seen the solar south pole in history. Captured in March 2025, ...

blue, red, and green light

How the Speed of Light Changed Everything We Know About the Universe

Jan Otte

The speed of light was a mystery for millennia, a fugitive constant that escaped measurement and understanding. Now among the most basic foundations of contemporary physics, it shapes our knowledge of space, time, and the very fabric of reality. Light’s speed is more than just a number; it’s a cosmic speed limit, a ruler for ...