Using ESA's XMM-Newton space telescope, astronomers have spotted bright X-ray outbursts emitted by a Be/X-ray binary known as A0538−66. The discovery marks the ending of an over three-decade-long period of quiescence of ...
Using ESA's XMM-Newton and NASA's Swift spacecraft, astronomers have found that a hard X-ray source known as 2PBCJ0658.0-1746 is an eclipsing magnetic cataclysmic variable of the polar type. The finding, presented in a paper ...
The purple lines and blotches scattered across this image show something incredible: all of the X-ray sources that were serendipitously detected—that is, not intentionally targeted—by ESA's XMM-Newton X-ray space observatory ...
Astronomy
Jul 10, 2019
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0
What would happen if the hands of time were turned back to an arbitrary point in our evolutionary history and we restarted the clock? American paleontologist Stephen Jay Gould proposed this famous thought experiment in the ...
Evolution
Jun 6, 2019
10
47
Imagine you're looking for your keys and you think you might have left them on the bookshelf. But when you look, you see nothing but books. A natural conclusion to draw is that the keys are not there.
Social Sciences
Apr 23, 2019
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9
If ship hulls were coated with special high-tech air trapping materials, up to one percent of global CO2 emissions could be avoided. This is the conclusion reached by scientists from the University of Bonn together with colleagues ...
Materials Science
Jan 24, 2019
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11
The serve is arguably the most important component of the modern tennis game – and the faster, the better.
General Physics
Jan 14, 2019
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9
ESA's high-energy space telescopes Integral and XMM-Newton have helped to find a source of powerful X-rays at the centre of an unprecedentedly bright and rapidly evolving stellar explosion that suddenly appeared in the sky ...
Astronomy
Jan 11, 2019
14
95
Newton's third law dictates that forces between interacting particles are equal and opposite for closed systems. In a non-equilibrium environment, the third law can be defied, giving rise to "nonreciprocal" forces. Theoretically, ...
Based on a new theoretical model, a team of scientists explored the rich data archive of ESA's XMM-Newton and NASA's Chandra space observatories to find pulsating X-ray emission from three sources. The discovery, relying ...
Astronomy
Nov 22, 2018
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