The most powerful cosmic-ray electrons and positrons ever detected slamming into Earth's atmosphere carry energies so high ...

This background radiation has long been known to originate from the Local Hot Bubble (LHB), a vast region of hot gas ... this ...

A Russian segment of the International Space Station was locked down this weekend after cosmonauts found an “unusual odor” ...

In “A City on Mars,” Kelly and Zach Weinersmith investigate what life would be like for humans on the red planet, arguing ...

A magnetosphere is a "bubble" around a planet that plays a big role in the planet's conditions by shielding it from both cosmic and solar particle radiation. Such particle radiation gets trapped ...

Explore the universe with news on fascinating discoveries ... magnetosphere was home to unexpectedly powerful electron radiation belts. Their intensity was similar to the massive bands of ...

Earth, between sweltering Venus and frozen Mars, formed and orbits within a band where water could persist in solid, liquid, and gaseous phases. Mars had surface water, but not as much as Earth, and ...

Explore the universe with news on fascinating discoveries ... operating beyond the heliosphere — the sun’s bubble of magnetic fields and particles that extends well beyond Pluto’s orbit ...