- Rob Reiner (Wikipedia)
Robert Reiner (/ˈraɪnər/; March 6, 1947 – December 14, 2025) was an American filmmaker, actor, and political activist. He directed a series of acclaimed studio films in a career that spanned comedy, drama, romance, and documentary. Reiner received numerous accolades, including winning two Primetime Emmy Awards and a Hugo Award, as well as nominations for an Academy Award, a BAFTA Award, and nine Golden Globe Awards. He was honored with a star on the Hollywood Walk of Fame in 1999 and received the Chaplin Gala Tribute at the Film at Lincoln Center in 2014. Three of his films have been inducted into the National Film Registry.
- Open cluster (Wikipedia)
An open cluster is a type of star cluster made of tens to a few thousand stars that were formed from the same giant molecular cloud and have roughly the same age. More than 1,100 open clusters have been discovered within the Milky Way galaxy, and many more are thought to exist. Each one is loosely bound by mutual gravitational attraction and becomes disrupted by close encounters with other clusters and clouds of gas as they orbit the Galactic Center. This can result in a loss of cluster members through internal close encounters and a dispersion into the main body of the galaxy. Open clusters generally survive for a few hundred million years, with the most massive ones surviving for a few billion years. In contrast, the more massive globular clusters of stars exert a stronger gravitational attraction on their members, and can survive for longer. Open clusters have been found only in spiral and irregular galaxies, in which active star formation is occurring.