Alfvén waves: The invisible power source that accelerates particles to create the stunning Northern Lights
Sandeep K S
Jan 29
1 min read
Unveiling the Cosmic Enigma: This infographic explains how Alfven waves, confirmed by NASA's Van Allen Probes and THEMIS missions, power the auroras by traveling along Earth’s magnetic field. Insights extend to understanding auroras on other planets like Jupiter.
Scientists have uncovered the first robust evidence of a black hole and neutron star crashing together while orbiting in an oval path, challenging long-standing assumptions about cosmic pair formation.
Most neutron star-black hole pairs are expected to adopt circular orbits long before merging, their orbits slowly rounded out by the constant emission of gravitational waves over millions of years.
Far from the warmth of any star, moons orbiting rogue gas giants might harbor oceans of liquid water—and potentially complex life—for billions of years.
Liquid water is considered essential for life. Surprisingly, however, stable conditions that are conducive to life could exist far from any sun.
Look up on a clear night and you'll see the streaks of our modern satellite networks. What you don't see is the growing fallout for the atmosphere that keeps us alive.
A wave of satellite launches and reentries is changing the chemistry and physics of the middle and upper atmosphere. Studies warn of ozone depletion, stratospheric heating, and new metal aerosols from burning spacecraft.
Comments