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“#HOPS 383: X-rays from a newborn star hint at our sun’s earliest days” Credit: Chandra X-ray Center By detecting an X-ray flare from a very young star using NASA’s Chandra X-ray Observatory, researchers have reset the timeline for when stars like the sun start blasting high-energy radiation into space, as reported in our latest press…
“#Astronomers detect regular rhythm of radio waves, with origins unknown” CHIME, pictured here, consists of four large antennas, each about the size and shape of a snowboarding half-pipe, and is designed with no moving parts. Rather than swiveling to focus on different parts of the sky, CHIME stares fixedly at the entire sky, looking for…
“#Quasar jets are particle accelerators thousands of light-years long” Composite image of Centaurus A, showing the jets emerging from the galaxy’s central black hole, together with the associated gamma radiation. Credit: © ESO/WFI (Optical); MPIfR/ESO/APEX/A.Weiss et al. (Submillimetre); NASA/CXC/CfA/R.Kraft et al. (X-ray), H.E.S.S. collaboration (Gamma) An international collaboration bringing together over 200 scientists from 13…
“#As many as six billion Earth-like planets in our galaxy, according to new estimates” Artist’s conception of Kepler telescope observing planets transiting a distant star. Credit: NASA Ames/W Stenzel. To be considered Earth-like, a planet must be rocky, roughly Earth-sized and orbiting Sun-like (G-type) stars. It also has to orbit in the habitable zones of…
“#Storm hunter turns two” Credit: NASA The Atmosphere-Space Interactions Monitor or ASIM, mounted outside the European laboratory of the International Space Station, enters its second year of science operations. Launched in April 2018, the payload began operating on 14 June 2018 and has been studying thunderstorms 400 km above Earth ever since. Specifically, ASIM is…
“#New lithium-rich Cepheid discovered in the Milky Way” Spectral energy distribution of V363 Cas. Credit: Catanzaro et al., 2020. Italian astronomers have reported the discovery of a new lithium-rich galactic Cepheid star, identified by high-resolution spectroscopic observations. The newfound object, designated V363 Cas, is the fifth lithium-rich classical Cepheid in our Milky Way galaxy. The…
“#Measuring the spin of a black hole” An artist’s impression of a spinning black hole surrounded by an accretion disc. Astromers have use X-ray spectroscopy to measure the spin of a solar-mass black hole in the Milky Way. Credit: ESO, ESA/Hubble, M. Kornmesser A black hole, at least in our current understanding, is characterized by…
“#Innovative model provides insight into the behavior of the black hole at the center of our galaxy” Sagittarius A*. This image was taken with NASA’s Chandra X-Ray Observatory. Credit: Public domain Like most galaxies, the Milky Way hosts a supermassive black hole at its center. Called Sagittarius A*, the object has captured astronomers’ curiosity for…
“#Ingredients for life appear in stellar nurseries long before stars are born” Artist’s illustration of complex organic molecules in space. Credit: NASA/Jenny Mottar uanews.arizona.edu/story/ingre … -long-stars-are-born Complex organic molecules that could serve as building blocks for life are more ubiquitous than previously thought in cold clouds of gas and dust that give birth to stars…
“#Astronomers discover how long-lived Peter Pan discs evolve” Credit: CC0 Public Domain New research from scientists at Queen Mary University of London has revealed how long-lived Peter Pan discs form, which could provide new insights into how planets arise. Planet-forming, or protoplanetary, discs are giant discs of gas and dust found circling young stars. The…