galaxies : activegalaxies : elliptical and lenticular, cDgalaxies : nucleigalaxies : Seyfertradiation mechanisms : nonthermalradio continuum : galaxiesMany nearby early-type (elliptical and S0) galaxies contain weak (millijansky level) nuclear radio sources on scales of a few hundred parsecs or less....
as we have seen, there is more to quasars and other active galaxies than the point-like energy source. They can also have long jets that glow with radio waves, light, and sometimes even X-rays, and that extend far beyond the limits of the parent galaxy. Can we find a...
20:26 Was Hubble the one to discover the redshift of galaxies?This was an error on my part; Hubble was using earlier work of Vesto Slipher on these redshifts, and combining it with his own measurements of distances using Leavitt’s law to arrive at the law that now bears his name; ...
This piece however will turn things around, instead of AI being the active virus, it will be us humans that become the hunters, the active infiltrators of that – to most of us still imaginary – force, that is artificial intelligence or AI. Ideally, we humans should be healthy and sel...
Astronomers have peered into the heart of a nearby starburst galaxy to better understand what powers its intense bouts of star formation. "All stars form in dense clouds of dust and gas," Adam Leroy, formerly of the National Radio Astronomy Observatory in Virginia and now with Ohio State ...
However, he seriously doubted that there were humanoid life forms in other galaxies. Hawking said that it would be highly unlikely that life-supporting planets elsewhere would mirror lifeforms on Earth to such an extent. He blamed this on our failure to broaden our imagination when it comes to...
20:26 Was Hubble the one to discover the redshift of galaxies?This was an error on my part; Hubble was using earlier work of Vesto Slipher on these redshifts, and combining it with his own measurements of distances using Leavitt’s law to arrive at the law that now bears his name; ...
How much larger and brighter is a supermoon compared to a regular full moon? The moon will appear as much as 30 percent brighter and 14 percent larger than usual, but it's very hard to spot the difference with the naked eye. "That's not enough to notice unless you're a very careful...
Solar Street Light: Solar street lights are used to provide illumination on the roads. It draws energy from the Sun and returns it at night as light energy. In a solar street light, the solar panel takes energy from the sun, and the battery stores th...
What powers the flight of soaring birds? What is the cause of the intense luminosity of active Galaxies, such as Quasars or Seyfert? What causes the northern and southern lights? What is a radiation curve? Why is the light inside a rainbow brighter than on the outside? What kind of star...