"Impossible" neutrino signals?

Extremely energy-rich particle traces can not be explained with the standard model After the IceCube detector has captured an unusually high-energy particle trace, the balloon detector ANITA has now registered two more. All three seem to contradict the standard model of particle physics. © NASA Read out Contradiction to the standard model?
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SpaceX wants to send first tourists to the moon

Japanese billionaire has booked tickets for a moon flight in 2023 This is what the rocket will look like, bringing the space tourist Yusaku Maezawa to the moon. © Elon Musk / SpaceX Read out Ambitious plan: A Japanese man may be the first person to revisit the moon after a long break - as a tourist.
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AI detects cosmic radio flashes

72 newly discovered signals provide more information about the mysterious phenomenon Nearly radio bursts still give up riddles - now an artificial intelligence helps the astronomers. © Breakthrough Listen / Danielle Futselaar Read out Mysterious Phenomenon: The ultra-short but extremely intense Fast Radio Bursts puzzle astronomers.
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Einstein test on the black hole

Close flyby of Stern at the Milky Way Center confirms gravitational redshift Star S2 at the Close Passage on the Black Hole Sagittarius A * - This rare event has enabled a test of Einstein's gravitational redshift. © ESO / M. Grain knife Read out For many years astronomers have been waiting for this: the close flyby of a star at the Milky Way Center has put Einstein's theory of relativity to the test.
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Dark Energy: No Symmetries?

Experiment makes the exotic field less likely to explain the dark energy Could a scalar field traversing the universe explain the dark energy? At least one candidate for it is now unlikely. © HG: NASA / ESA Read out But not a candidate for dark energy: "Symmetry fields" are a hypothesis that could explain the enigmatic Dark Energy.
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Pulsar confirms Einstein

Triple system of white dwarfs and neutron star allows the most accurate test so far Unique triad: A system of two white dwarfs and a neutron star puts Einstein to the test. © NRAO / AUI / NSF; S. Dagnello Read out Cosmic heavyweights as test object: A neutron star and two white dwarfs have made astronomers the most accurate test so far of Einstein's general relativity theory.
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Is dark matter partially charged?

Unusual explanation for a mysterious cooling effect in the early universe Did dark matter contribute to the cooling of primordial gases in the early days of the cosmos? © CfA / M. Weiss Read out Surprising Theory: A tiny fraction of dark matter might consist of particles with a weak electrical charge - US researchers suggest.
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NASA sends helicopter to Mars

Mission Mars 2020 brings first flight device on a foreign planet In July 2020, an aircraft will travel to a foreign planet for the first time © NASA / JPL-Caltech Read out Maiden flight on the Red Planet: In July 2020, the first helicopter will launch to Mars. As part of NASA's "Mars 2020" mission, the small helicopter is set to explore semi-autonomously the area around Marsrovers.
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Hawking's last theory

Posthumously published theory provides a new perspective on cosmic inflation and parallel universes The physicist Stephen Hawking at a lecture. A journal article on cosmic inflation, published shortly before his death, has now been published. © NASA / Paul E. Alers Read out Published posthumously: The physicist Stephen Hawking, shortly before his death, developed a new model into one of the great mysteries of cosmology - cosmic inflation.
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Manhunt for the Axion begins

Detector ADMX could find dark matter particles within the next few years The universe is full of Dark Matter, but what it consists of is unknown. The ADMX detector could now clarify this. © NASA, ESA, CFHT, CXO, MJ Jee (University of California, Davis), and A. Mahdavi (San Francisco State University) Read out "Dark matter radio": A new detector in the US could detect the dark matter particles within the next few years - if they are axions.
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Dark matter: SIMPs instead of WIMPs?

Could particles from an exotic quark combination form the dark matter? Could this be the dark matter particle? At least some physicists favor such a quark-antiquark combination, because of their characteristics called "Strongly Interacting Massive Particles" (WIMPs). B UC Berkeley Read out Alternative Theory: It is possible that dark matter consists of other particles than expected
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Light always travels the same distance in liquids

Experiment confirms apparently absurd thesis In transparent liquids, light paths are straightforward - in turbid liquids they become more complicated due to scattering. © TU Vienna Read out Despite scattering: No matter how clear or cloudy a liquid is - the light always travels the same distance. This seemingly absurd thesis has now been experimentally confirmed by researchers.
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A look into the mentality of the young Stephen Hawking

Doctoral thesis of the astrophysicist now freely accessible on the internet for the first time The British physicist Stephen Hawking at a lecture. He died on March 14, 2018. © NASA / Paul Alers Read out He is one of the most famous astrophysicists worldwide: Stephen Hawking. Now his doctoral thesis, written over 50 years ago, is freely accessible on the internet for the first time.
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Laser is to warn of space debris

New laser technology can capture parts of the bucket with centimeter accuracy A new laser snubber is to protect against the dangers of space debris in orbit © Fraunhofer IOF Read out Protection against flying scrap: A new laser system is to warn satellites of space debris in time. Installed on board, the system locates even small debris using ultrashort laser pulses.
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Physicists create the fastest vortex in the universe

Quark-gluon plasma has the largest vortex strength of all known fluids The quark-gluon plasma is not only the most liquid liquid in the cosmos, it can also rotate faster than anything else. Here is a schematic view of the plasma during a lead collision in the LHC. © CERN Read out New record for the cosmic primordial soup: The quark gluon plasma is not only the liquid of the universe, it also rotates faster than any known media.
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Neutrinos "caught" in interaction

First proof of the backscatter of neutrinos at the atomic nucleus succeeded The detector with which the physicists of COHERENT Collarboration have demonstrated the scattering of neutrinos on the atomic nucleus is hardly larger than a shoe-box. © Jean Lachat / University of Chicago Read out Finally proven after 43 years: physicists have observed neutrinos colliding with atomic nuclei.
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Interstellar nanoprobes in orbit test

Precursors for later star probes complete test flight in orbit They are still underway without a light sail: the first forerunners of future nano-star probes are being tested in orbit. © Breakthrough Starshot Read out First test for ambitious plans: Nanoprobes should someday fly to our neighboring stars - at least if it comes to the Breakthrough Initiative.
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Where is the inflation hidden?

Searching for the carrier particle of cosmic inflation finds nothing This is what a "normal" decay looks like in the LHCb detector. In deviations from this, inflation would have to be betrayed. © LHCb Collaboration / CERN Read out Enigmatic Absence: According to popular theory, cosmic inflation was driven by a force field and associated particle - the inflation.
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First quantum transfer from orbit

Chinese satellite sends bound photons to earth for the first time For the first time, a satellite has transmitted entangled photons from orbit to Earth © 3D Sculptor / thinkstock Read out Milestone of quantum communication: For the first time, a satellite has sent entangled photons from orbit to Earth.
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NASA photos: Mystery of light flashes solved

Light reflections on satellite imagery of the Earth are from ice particles in the air Sunlight is reflected from the atmosphere by ice crystals, creating bright spots (circled in red) in the NASA satellite DISCOVR. © NASA's Goddard Space Flight Center Read out Enlightening insight: For a long time, mysterious points of light on NASA images of the earth caused guesswork.
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