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“#Researchers find younger age for Earth’s moon” The moon is born. Credit: Ron Miller The moon formed a little later than previously assumed. When a Mars-sized protoplanet was destroyed in a collision with the young Earth, a new body was created from the debris ejected during this collision, which became the moon. Planetary geophysicists at…
“#Two bizarre brown dwarfs found with citizen scientists’ help” This is an illustration of a brown dwarf. Despite their name, brown dwarfs would appear magenta or orange-red to the human eye if seen close up. Credits: William Pendrill With the help of citizen scientists, astronomers have discovered two highly unusual brown dwarfs, balls of gas…
“#Image: Hubble sees sculpted galaxy” Credit: ESA/Hubble & NASA, M. Stiavelli Captured by the NASA/ESA Hubble Space Telescope, this image shows NGC 7513, a barred spiral galaxy. Located approximately 60 million light-years away, NGC 7513 lies within the Sculptor constellation in the Southern Hemisphere. This galaxy is moving at the astounding speed of 972 miles…
“#Scientists propose plan to determine if Planet Nine is a primordial black hole” Credit: CC0 Public Domain Scientists at Harvard University and the Black Hole Initiative (BHI) have developed a new method to find black holes in the outer solar system, and along with it, determine once-and-for-all the true nature of the hypothesized Planet Nine….
“#The Euclid space telescope is coming together” The VIS and NISP instruments on Euclid’s payload module. Credit: Airbus ESA’s Euclid mission has reached another milestone on its journey towards launch. Its two instruments are now built and fully tested. These have been delivered to Airbus Defence and Space in Toulouse, France, where they are now…
“#Supermassive binary black hole hunter: SKA pulsar timing array” The red curve cross the contour centers shows the evolution trend of SMBBH population from low redshift to high redshift: the gravitational wave frequencies increase; the gravitational wave strains decrease first and then increase. Credit: NAOC Recently, researchers from the National Astronomical Observatory of the Chinese…
“#How colliding neutron stars could shed light on universal mysteries” An important breakthrough in how we can understand dead star collisions and the expansion of the Universe has been made by an international team, led by the University of East Anglia.They have discovered an unusual pulsar – one of deep space’s magnetized spinning neutron-star ‘lighthouses’…
“#Finding NEMO: The future of gravitational-wave astronomy” Recent transformational discoveries are only the tip of the iceberg of what the new field of gravitational-wave astronomy could potentially achieve.Credit: Carl Knox/OzGrav/Swinburne A new study released today makes a compelling case for the development of “NEMO”—a new observatory in Australia that could deliver on some of the…
“#Study determines fundamental parameters of the chemically peculiar star HD 108662” Element abundances in the atmosphere of HD 108662. Credit: Romanovskaya et al., 2020. Astronomers have carried out a spectroscopic analysis of the atmosphere of a magnetic chemically peculiar star designated HD 108662. The study, described in a paper published June 29 on the arXiv…
“#Shock waves from stellar explosions take preferential direction” Crab Nebula, a supernova remnant. Credit: public domain In a paper published in the Astrophysical Journal, a team led by researchers at École Polytechnique have paved the way to unraveling the mystery as to why many supernova remnants that we observe from Earth are axisymmetric (elongated along…