Authors: George Rajna
Our senses are stuck in the past. There's a flash of lightning, and then seconds pass until we hear the rumble of distant thunder. We hear the past. [31] ESA's technical centre in the Netherlands has begun running a pulsar-based clock. The "PulChron' system measures the passing of time using millisecond-frequency radio pulses from multiple fast-spinning neutron stars. [30] VR is an almost perfect avenue for this approach, since it has been surging in popularity as both entertainment and an educational tool. [29] Using MAGIC telescopes and NASA's Fermi spacecraft, an international team of astronomers has discovered a new source of very high energy gamma-ray emission around the supernova remnant (SNR) G24.7+0.6. [28] In 1973, Russian physicist A.B. Migdal predicted the phenomenon of pion condensation above a critical, extremely high-several times higher than that for normal matter-nuclear density. [27] Our first glimpses into the physics that exist near the center of a black hole are being made possible using "loop quantum gravity"-a theory that uses quantum mechanics to extend gravitational physics beyond Einstein's theory of general relativity. [26] In the shadowy regions of black holes two fundamental theories describing our world collide. Can these problems be resolved and do black holes really exist? First, we may have to see one and scientists are trying to do just this. [25] The authors suggest that this virtual reality simulation could be useful for studying HYPERLINK "https://phys.org/tags/black+holes/" black holes. [24] Every galaxy is thought to harbor a supermassive black hole in the center, or nucleus, of the galaxy, and in active galaxies this black hole is fed by infalling matter. [23] A new study by researchers at the University of Colorado Boulder finds that violent crashes may be more effective at activating black holes than more peaceful mergers. [22] For the first time, a team of astronomers has observed several pairs of galaxies in the final stages of merging together into single, larger galaxies. [21]
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