ENG: The Universe appears to be expanding faster than scientists expect, creating a puzzle known as the Hubble tension. Recent research, led by Dan Scolnic, confirms that the Universe’s expansion rate called the Hubble constant is higher than predicted by current cosmological models. This result supports earlier debated findings and highlights a growing mismatch between observations and our understanding of the Universe’s behavior.
ENG: Recent observations of the Vega system using NASA’s Hubble and James Webb Space Telescopes have provided unprecedented detail about the nearly 100-billion-mile-wide circumstellar debris disk surrounding the star. The research revealed that Vega’s disk is extraordinarily smooth, with no apparent large planets shaping its structure, challenging previous assumptions about the relationship between circumstellar disks and planet formation. The disk also exhibits distinct layering, with smaller dust grains being pushed outward by starlight pressure, creating a stratified distribution. This smoothness and lack of evidence for planet-induced features stand in stark contrast to other systems, such as Fomalhaut, where planets are thought to shepherd debris into nested rings.
ENG: In the depths of the France–Switzerland border, the Large Hadron Collider (LHC) operates as the world’s most powerful particle accelerator, smashing protons together at near-light speeds. These collisions create tiny bursts that mimic the conditions of the early universe, providing a unique opportunity for scientists to explore the subatomic realm. Among these scientists is Duke physicist Ashutosh Kotwal, who is focused on uncovering the mysteries of dark matter—the elusive substance that makes up five times more of the universe than ordinary matter, yet remains unseen. Utilizing advanced artificial intelligence, Kotwal aims to capture fleeting evidence of dark matter within the subatomic debris created by the LHC’s collisions.
ENG: For the first time, a phenomenon astronomers have long hoped to directly image has been captured by NASA’s James Webb Space Telescope’s Near-Infrared Camera (NIRCam). In a stunning image of the Serpens Nebula, the discovery lies in the northern area of this young, nearby star-forming region. This image reveals an intriguing group of protostellar outflows in the upper left, providing new insights into the early stages of star formation.
