麻豆传媒

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A groundbreaking new study using the Dark Energy Survey (DES) final datasets suggests potential inconsistencies in the standard cosmological model, known as 螞CDM. If confirmed, these findings could fundamentally alter our understanding of the Universe. DES was conducted using the 570-megapixel Department of Energy-fabricated Dark Energy Camera (DECam), mounted on the U.S. National Science Foundation V铆ctor M. Blanco 4-meter Telescope at Cerro Tololo Inter-American Observatory in Chile, a Program of NSF NOIRLab.

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The DESI collaboration has published a new analysis of dark energy using their first three years of collected data, which spans nearly 15 million galaxies and quasars. Combined with studies of the cosmic microwave background, supernovae, and weak lensing, the analysis hints that dark energy changes over time. Data Release 1, containing data from DESI鈥檚 survey validation and first year of observations, has now been made available for scientists and the public to explore.

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Con este componente, el observatorio instalado en Chile, pronto estar谩 listo para capturar m谩s im谩genes que cualquier otro observatorio en la historia

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Using the largest digital camera in the world, Rubin Observatory will soon be ready to capture more data than any other observatory in history

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Utilizando la ayuda del telescopio Gemini Norte, la mitad boreal del Observatorio Internacional Gemini que financia en parte la Fundaci贸n Nacional de Ciencias de Estados Unidos y que opera NOIRLab de NSF, un equipo de astr贸nomos descubri贸 cuatro exoplanetas m谩s peque帽os que la Tierra, orbitando la estrella de Barnard, el sistema estelar con una sola estrella m谩s cercano. Uno de los planetas encontrados mediante la t茅cnica de velocidad radial corresponde al exoplaneta menos masivo que se haya descubierto hasta ahora, lo que marca un nuevo punto de referencia para el descubrimiento de planetas m谩s peque帽os alrededor de estrellas cercanas.

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Using in part the Gemini North telescope, one half of the International Gemini Observatory, partly funded by the U.S. National Science Foundation and operated by NSF NOIRLab, astronomers have discovered four sub-Earth exoplanets orbiting Barnard鈥檚 Star, the nearest single star system to Earth. One of the planets is the least massive exoplanet ever discovered using the radial velocity technique, indicating a new benchmark for discovering smaller planets around nearby stars.

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Mediante el telescopio Gemini Sur, una de las dos instalaciones del Observatorio Internacional Gemini, financiado en parte por la Fundaci贸n Nacional de Ciencias de EE. UU. y operado por NOIRLab de NSF, y el Telescopio Magallanes Baade, los astr贸nomos observaron por primera vez una nova recurrente fuera de la V铆a L谩ctea en luz infrarroja cercana. Los datos revelaron emisiones qu铆micas muy inusuales, as铆 como tambi茅n una de las temperaturas m谩s altas jam谩s registradas para una nova, ambos indicios de una erupci贸n extremadamente violenta.

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Using the Gemini South telescope, one half of the International Gemini Observatory, partly funded by the U.S. National Science Foundation and operated by NSF NOIRLab, and the Magellan Baade Telescope, astronomers have for the first time observed a recurring nova outside of the Milky Way in near-infrared light. The data revealed highly unusual chemical emissions as well as one of the hottest temperatures ever reported for a nova, both indicative of an extremely violent eruption.

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Within the Dark Energy Spectroscopic Instrument鈥檚 early data, scientists have uncovered the largest samples ever of intermediate-mass black holes and dwarf galaxies hosting an active black hole, more than tripling the existing census of both.

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Gracias a los datos proporcionados por DESI, cient铆ficos descubrieron las muestras m谩s grandes jam谩s obtenidas de agujeros negros de masa intermedia y de galaxias enanas que albergan un agujero negro activo, triplicando el censo existente de ambos. Estas enormes muestras permitir谩n realizar estudios mucho m谩s profundos de la din谩mica entre la evoluci贸n de las galaxias enanas y el crecimiento de agujeros negros.

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Displaying wispy layers of red, orange and yellow, the nebula encasing NGC 2040 resembles a vibrant rose in this image captured by the Gemini South telescope, one half of the International Gemini Observatory, which is supported in part by the U.S. National Science Foundation and operated by NSF NOIRLab. This nebulous flower showcases the dramatic story of stellar life, death and rebirth.

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Con tenues capas en rojo, naranja y amarillo, la nebulosa que encierra a NGC 2040 se asemeja a una palpitante rosa en esta imagen captada por Gemini Sur, uno de los telescopios gemelos que forman el Observatorio Internacional Gemini, financiado en parte por la Fundaci贸n Nacional de Ciencias de Estados Unidos y operado por NOIRLab de NSF. Esta nebulosa flor muestra la dram谩tica historia de la vida, la muerte y el renacimiento de las estrellas.

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Un equipo de astr贸nomos, utilizando el Telescopio Gemini Norte, la mitad boreal del Observatorio Internacional Gemini, financiado en parte por la Fundaci贸n Nacional de Ciencias de Estados Unidos y operado por NOIRLab de NSF, detect贸 el Jet m谩s grande jam谩s observado del Universo temprano. Hist贸ricamente, este tipo de Jets han permanecido ocultos en el Universo distante. Gracias a estas observaciones, los astr贸nomos disponen de nuevos y valiosos datos sobre cu谩ndo se formaron los primeros Jets en el Universo y c贸mo influyeron en la evoluci贸n de las galaxias.

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Journey Through the Universe 鈥� a partnership between the International Gemini Observatory, funded in part by the U.S. National Science Foundation and operated by NSF NOIRLab, and the Hawai驶i Department of Education Hilo-Wai膩kea Complex Area 鈥� celebrates 21 years of cosmic exploration with Hawai鈥榠 students and the community.

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Using the visiting IGRINS instrument on the Gemini South telescope, a team of astronomers examined the atmosphere of ultra-hot Jupiter WASP-121b and found hints that it may have formed much closer to its star than previously believed possible. This discovery was uniquely enabled by IGRINS鈥檚 ability to simultaneously detect both metallic and icy chemical signatures, a feat typically accomplished using two different instruments.

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Un equipo de astr贸nomos, utilizando el instrumento visitante IGRINS del telescopio Gemini Sur, examin贸 la atm贸sfera del J煤piter ultracaliente WASP-121b y encontr贸 indicios de que podr铆a haberse formado mucho m谩s cerca de su estrella de lo que se cre铆a posible. Este descubrimiento fue posible gracias a la capacidad de IGRINS para detectar simult谩neamente firmas qu铆micas met谩licas y heladas, una haza帽a que se puede conseguir con dos instrumentos distintos.

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NSF鈥揇OE Vera C. Rubin Observatory, funded by the U.S. National Science Foundation and the U.S. Department of Energy鈥檚 Office of Science, will soon witness the explosions of millions of dying stars. Scientists use the light from these events to measure cosmic distances and study dark energy鈥檚 effect on the Universe鈥檚 expansion. Over its 10-year Legacy Survey of Space and Time, Rubin could change our understanding of how 鈥� and when 鈥� the Universe formed.