Atmospheric Science
Aurora Borealis
The Aurora Borealis, or Northern Lights, is a natural light display predominantly seen in high-latitude regions around the Arctic. This phenomenon results from the interaction between charged particles from the sun and Earth's magnetic field, leading to vibrant, dynamic patterns in the night sky.
Petrichor
Petrichor is the term for the characteristic earthy aroma that arises when rain falls on dry soil. Coined in 1964 by Australian researchers Isabel Joy Bear and R. G. Thomas, the scent reflects a combination of plant-derived oils, microbial metabolites such as geosmin, and physical processes that aerosolize these compounds during light to moderate rainfall.