Science

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A Cosmic Mystery: ESO Telescope Captures the Disappearance of a Massive Star

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A Cosmic Mystery: ESO Telescope Captures the Disappearance of a Massive Star

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The Beautiful Mess in Galaxy Cluster Abell 2255

The beautiful mess in Abell 2255 An international team of astrophysicists led by Andrea Botteon from Leiden University, the Netherlands, has shed light on one of the most intricate objects of the radio sky: the galaxy cluster Abell 2255. Thanks to the incredible detailed images obtained with the European radio telescope LOFAR, the scientists have been able to observe details never seen before of the emission from the cluster. The halo in Abell 2255 is not smooth, but contains numerous filaments that have not been seen previously. The result has been presented today at the virtual annual meeting of the European Astronomical Society (EAS) and will be published in The Astrophysical Journal.

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The filamentary structures observed by LOFAR at the center of Abell 2255, here reported in red. These radio emissions are due to trails of particles and magnetic fields released by the galaxies during their motion inside the cluster

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Array of Radio Telescopes Reveals Explosion on the Surface of a Hot Dead Star

An international group of researchers observed a source of variable gamma rays identified in 2010 by the NASA satellite Fermi. They used a technique called VLBI, that combines data from several radio telescopes on Earth, to produce the sharpest images to date. Surprisingly, the source of gamma rays was a symbiotic nova, a peculiar stellar system known to astronomers as V407 Cyg. The result, with first author Marcello Giroletti (National Institute of Astrophysics INAF, Italy), has been presented at the annual meeting of the European Astronomical Society (EAS), and published in Astronomy & Astrophysics.

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The set of images obtained from the observations, starting 20 days after the discovery of the nova event and tracing the advance of the shock front for over six months.

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One galaxy, two asteroids

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One galaxy, two asteroids

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Dance, Electron, Dance: Scientists Use Light to Choreograph Electronic Motion in 2D Materials

Study led by Berkeley Lab, UC Berkeley could advance understanding of electron interactions for quantum devices

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Microscope image of the TMD moiré superlattice device.

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NASA-NOAA’s Suomi NPP Satellite Analyzes Saharan Dust Aerosol Blanket

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This June 24, 2020 image is from the Suomi NPP OMPS aerosol index. The dust plume moved over the Yucatan Peninsula and up through the Gulf of Mexico. The largest and thickest part of the plume is visible over the eastern and central Atlantic.

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Black Hole Collision May Have Exploded With Light

In a first, astronomers may have seen light from the merger of two black holes, providing opportunities to learn about these mysterious dark objects.

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This artist's concept shows a supermassive black hole surrounded by a disk of gas. Embedded in this disk are two smaller black holes that may have merged together to form a new black hole.

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Photo Release: Hubble Watches the “Flapping” of Cosmic Bat Shadow.

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The young star HBC 672 is known by its nickname of Bat Shadow because of its wing-like shadow feature. The NASA/ESA Hubble Space Telescope has now observed a curious “flapping” motion in the shadow of the star’s disc for the first time. The star resides in a stellar nursery called the Serpens Nebula, about 1300 light-years away.

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Press release: Super-Earths discovered orbiting nearby red dwarf

International researchers led by University of Göttingen find multiple planet system orbiting Gliese 887

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Artist’s impression of the multiplanetary system of newly discovered super-Earths orbiting nearby red dwarf Gliese 887

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NASA's TESS, Spitzer Missions Discover a World Orbiting a Unique Young Star

The newly discovered planet's parent star is still encircled by the disk of material from which both objects formed, giving scientists a glimpse at early planet evolution.

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This animated gif is an artist's concept of the planet AU Mic b and its young parent star. The faint band of light encircling the pair is a disk of gas and dust from which both the star and the planet formed.