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Milky Way mergers | Max-Planck-Gesellschaft

https://www.mpg.de/18263284/milky-way-mergers

A group of astronomers led by Khyati Malhan of the Max Planck Institute for Astronomy has created an atlas of mergers of smaller galaxies with our home galaxy, the Milky Way. Where earlier studies had reconstructed such mergers „by hand“, the new study applied a systematic statistical evaluation of 257 stellar streams, globular clusters and satellite galaxies, using data provided by ESA’s Gaia mission, to identify a total of six mergers – one previously unknown, which the researchers named „Pontus“. The new results are an important step towards a more complete reconstruction of our galaxy’s billion-year history. They have been published in the Astrophysical Journal.
And nearby stars moving in about the same direction

Clouds blanket the night side of the hot exoplanet WASP-43b | Max-Planck-Gesellschaft

https://www.mpg.de/21875918/0424-astr-jwst-wasp43b-clouds-150980-x?c=12034788

The James Webb Space Telescope created a temperature map of the exoplanet WASP-43b. The nearby parent star causes temperatures on the day side to rise to a blazing 1250 degrees Celsius. Meanwhile, eternal night reigns on the other side. Fierce winds blow the scorching hot air to the night side, where it cools to 600 degrees Celsius, forming clouds and covering the entire hemisphere. These storms affect the chemical reactions so much that hardly any methane can form.
a result, WASP-43b always faces the star with the same