Blue wavelengths of light are damaging to many forms of life, and glare from unshielded light compromises road safety and infiltrates bedrooms, suppressing melatonin production, undermining sleep quality and duration, and exacerbating susceptibility to many kinds of illness...
An astronomical year for me ….When I was in the third grade I suddenly became very interested in everything astronomical – especially the planets of our local solar system. That same year we studied the Solar System in public school, and that only added to my excitement over the topic. I began badgering my parents to buy me a telescope...
Fast Radio Bursts are flashes of radio emission lasting for several milliseconds. The time of arrival of signals depends on the radio frequency, called the dispersion measure (DM), which depends on the environment through which the signals travel, specifically the number of free electrons in their path. Very few FRBs have matches with sources observed at other wavelengths (Wikipedia - Fast Radio Burst).
To form a solar system, the literature says that in a simulation like this we can ignore the gravity of the Sun and just concentrate on the interaction of the objects in the protoplanetary disk.The gas, dust and other objects rotate around the forming Sun in Keplerian orbital motion...
“It does not do harm to the mystery to know a little about it. For far more marvelous is the truth than any artists of the past imagined it. Why do the poets of the present not speak of it?” -- Richard Feynman (1918 – 1988)
