Title:Constraining the assembly time of the stellar haloes of nearby Milky Way-mass galaxies through AGB populations Authors: Benjamin Harmsen, Eric F Bell, Richard D’Souza, Antonela Monachesi, Roelof S de Jong, Adam Smercina, In Sung Jang, Benne W Holwerda First Author’s Institution: University of Michigan Department of Astronomy Status: Published in MNRAS [closed access] Watching a…

China has postponed the launch of its Xuntian Space Telescope amid an international race to chart the frontiers of modern cosmology. Now slated for liftoff from southern China’s Wenchang Space Launch Center in mid-2025, the two-meter Xuntian ( “Survey the Heavens”) will join the European Space Agency’s 1.2-meter Euclid space telescope, which released its first…

A groundbreaking discovery by the University of Leeds scientists challenges astronomers’ understanding of some of the biggest and most common stars in the Universe. Scientists found evidence that massive Be stars, believed to exist in double stars, could be “triples.” What are Be Stars? Be stars have been known for about 150 years. An Italian…

Artist’s impression composed of a star with a disc around it (a Be “vampire” star; foreground) and its companion star that has been stripped of its outer parts (background). Credit: Pic credit: ESO/L. Calçada A ground-breaking new discovery by University of Leeds scientists could transform the way astronomers understand some of the biggest and most…

Sharjah24 : The University of Sharjah (UOS) concluded the 14th Arabic Conference of the Arab Union for Astronomy and Space Sciences, jointly organized by the Arab Union for Astronomy and Space Sciences (AUASS), in collaboration with the UOS and the Sharjah Academy for Astronomy, Space Sciences, and technology (SAASST). Over four days, more than 250…

Kyba, C. et al. Science 379, 265–268 (2023). Article  PubMed  Google Scholar  Nandakumar, S. et al. Nature https://doi.org/10.1038/s41586-023-06672-7 (2023). Article  Google Scholar  Falle, A. et al. Science 382, 150–152 (2023). Article  PubMed  Google Scholar  Mallama, A. et al. Preprint at https://arxiv.org/abs/2309.14152 (2023). Hu, J. A. et al. Astrophys. J. Lett. 941, L15 (2022). Article  Google…

The James Webb Space Telescope captured an image of the dense center of the Milky Way, a chaotic region of space, NASA said on Monday.  The image features Sagittarius C, a star-forming region about 300 light years from the Milky Way’s central supermassive black hole, Sagittarius A. Some 500,000 stars are visible in the image,…

The Geminids, considered one of the best and most reliable meteor showers of the year, is underway.  Activity began on Sunday, but the cosmic show will continue until Dec. 24, with a peak on Dec. 14. Here’s what you should know about the Geminids meteor shower, including what causes it: When and where can you…