18 January 2021
New study looks at how to harness energy from a black hole
... the ergosphere, magnetic reconnection is so extreme that the plasma particles are accelerated to velocities approaching the speed of light, added Comisso. The high relative velocity between captured and escaping plasma streams is what allows the...
17 February 2020
Earth-sized planet behind unusual star signals say astronomers
... its parent star. Stars give off a lot of light over many different wavelengths; radio emission for example has ...Jupiter whereby extremely energetic electrons move at close to the speed of light close to the planet near its equator. Radio aurorae ...
22 March 2016
Astronomers catch a supernova shock wave in visible light for the first time
... event, whereby stellar material is expelled away from the star at velocities up to 30,000 km/s or 10% of the speed of light is of great importance astronomically. "Like police getting surveillance footage of a crime after the event, we can study...
07 June 2019
First-ever image of cool gas disk surrounding Milky Way's black hole
... near its event horizon at about 30 percent the speed of light by ESO’s GRAVITY instrument last year. It is estimated... space-based X-ray telescopes as close as a tenth of a light-year away from the black hole. Perhaps surprisingly, amid this fiery ...
14 October 2016
Observable Universe is populated with 10 times as many galaxies as previously thought
...the night sky remains mostly dark. [1] The limited speed of light and the age of the Universe mean that the ...Olbers argued that the night sky should be permanently flooded by light, because in an unchanging Universe filled with an infinite number of...
18 January 2017
The unusual tails of a pulsar give a clue as to what type of pulse it generates
...two pulsars known as Geminga and B0355+54 have helped to shed light on the distinctive emission signatures of these objects. By using ...that the particles are accelerated to nearly the speed of light through a process called Fermi acceleration that ...
