The model can also show how dark energy is not an increase in energy that is causing the accelerated expansion of the universe, but is an accelerating decrease in matter throughout the universe as the stars and
“Basically, the star would be too massive for the jet to pierce through,” Gottlieb said. “So the jet will never make it out of the star, and that’s why it fails to produce a GRB. However, in these stars, the dying jet transfers all its energy to the cocoon, which is the onl...
In theory, there should also be large amounts of antimatter. Antimatter and matter are actually the same, only reversed in a way, with opposite charges. But there’s hardly any antimatter in the part of the universe we know, including the stars and other galaxies. “We’re here because ...
How can this be if energy is conserved? If we are not running out of energy, what are we really running out of? An inefficient machine is said to 'waste energy'. Does that mean energy is actually lost? Explain. Some of the energy we produce is wasted, for example, heat from a ...
produced, since creating them robs the star of energy rather than giving energy back. It has long been thought that these heavier elements, such as silver and gold, are created when two dense neutron stars collide. The gold of your wedding ring formed in the merging of two st...
—'Immortal' stars at the Milky Way's center may have found an endless energy source, study suggests —Supermassive black hole roars to life before astronomers' eyes in world-1st observations —Black hole growth is slowing down in the universe. New research could help explain why. There...
Life in the clouds of Venus, if present in sufficiently high abundance, must be affecting the atmospheric chemistry. It has been proposed that abundant Venusian life could obtain energy from its environment using three possible sulfur energy-metabolisms.
In the case of the Cigar galaxy, technically known as M82, its incredible galactic activity is a source of tremendous energy. While normal galaxies like the Milky Way produce a couple of dozen new stars every year, M82 produces ten times as many stars in that same period. While our galaxy...
Explain how supernovae produce neutron stars and pulsars. Name the most recent modification of the standard Big Bang model, and briefly explain how it differs from the standard model. Why do you think it took so long for astronomers to accurately measure the ...
How do nuclear power plants produce electricity? What does the sun consume to produce energy and helium? What is the energy source of stars primarily associated with? In what form does all radiant energy travel through space? ...