Best Oldest Known
HD 140283, informally known as the 'Methuselah Star,' is a metal-poor subgiant star located approximately 190 light-years from Earth in the constellation Libra. It is one of the oldest known stars in the Milky Way, with age estimates derived from its extremely low metal content and evolutionary stag...
J2, commonly referred to as Granny, was a female Southern Resident killer whale who functioned as the matriarch of J pod in the Pacific Northwest. She was observed and tracked by researchers from the Center for Whale Research for several decades. Based on demographic data and historical sightings, b...
One of the earliest known trilobite genera, from the Early Cambrian of Morocco and North America, critical for understanding the origin of the group.
