París, Feb 25, 2023.- A massive galaxy cluster in the constellation Cetus dominates the centre of this image from the NASA/ESA Hubble Space Telescope. This image is populated with a serene collection of elliptical and spiral galaxies, but galaxies surrounding the central cluster — which is named SPT-CL J0019-2026 —Continuar Leyendo
The image on the left is of the Jezero Crater, on the surface of Mars; the image on the right is the Red Stone Jurassic fossil delta of the Atacama Desert in northwestern Chile, a popular geological analog for Mars. Ythaca NY, Feb 21, 2023.- Current state-of-the-art instrumentation being sentContinuar Leyendo
Nadie vio venir el 15 de febrero de 2013 el meteoro de Cheliábinsk, el asteroide más grande que ha golpeado la Tierra en más de un siglo. Justo después del amanecer de un soleado día de invierno, un asteroide de 20 metros y 13 000 toneladas impactó contra la atmósferaContinuar Leyendo
During a break from looking at planets around other stars, ESA’s CHaracterising ExOPlanet Satellite (Cheops) mission has observed a dwarf planet in our own Solar System and made a decisive contribution to the discovery of a dense ring of material around it. París, Feb 10, 2023.- The dwarf planet isContinuar Leyendo
París, Feb 06, 2023.- A previously unknown 100–200-metre asteroid — roughly the size of Rome’s Colosseum — has been detected by an international team of European astronomers using the NASA/ESA/CSA James Webb Space Telescope. Their project used data from the calibration of the Mid-InfraRed Instrument (MIRI), in which the teamContinuar Leyendo
París, Feb 01, 2023.- Comet C/2022 E3 (ZTF) today makes its closest approach to Earth before likely leaving our Solar System forever. At billions of years old and not seen since Neanderthals roamed, the green comet continues to intrigue as it grows an apparent third tail and unexpectedly – butContinuar Leyendo
A search for variable stars called RR Lyrae has found some of the most distant stars in the Milky Way’s halo a million light years away. By Tim Stephens Santa Cruz, CA, Jan 26, 2023.- Astronomers have discovered more than 200 distant variable stars known as RR Lyrae stars inContinuar Leyendo
Interstellar molecular clouds are considered to be the birth sites of planetary systems. With the help of the James Webb Space Telescope, an international research team including the Center for Space and Habitability (CSH) at the University of Bern and the National Centre of Competence in Research (NCCR) PlanetS discoveredContinuar Leyendo
París, Jan 15, 2023.- Two teams of astronomers using ESA’s XMM-Newton space telescope have observed repeated outbursts of light from inactive black holes that partially destroy stars again and again. This discovery is unexpected, since outbursts of black holes usually appear only once when a black hole consumes a star.Continuar Leyendo
NGC 346, one of the most dynamic star-forming regions in nearby galaxies, is full of mystery. Now, though, it is less mysterious thanks to new findings from the NASA/ESA/CSA James Webb Space Telescope. París, Jan12, 2023.- NCG 346 is located in the Small Magellanic Cloud (SMC), a dwarf galaxy closeContinuar Leyendo
