Astronomers found 52 binaries of main-sequence stars and white dwarfs in open clusters using AI and Gaia data. These systems reveal the common-envelope phase, crucial for studying stellar evolution, supernovae, and gravitational waves.
Thanksgiving did not become a national holiday in the United States until the fall of 1863 when President Abraham Lincoln issued a proclamation declaring that the last Thursday in November would be a day of national thanksgiving.
