The eukaryotic spliceosome is a multi-megadalton ribonucleoprotein (RNP) complex found in eukaryotic nuclei that catalyzes the removal of introns (non-coding regions) from pre-mRNA and splices exons ...

Late in 2025, we covered the development of an AI system called Evo that was trained on massive numbers of bacterial genomes. So many that, when prompted with sequences from a cluster of related genes ...

Although the participation of spliceosomes is almost always required for intron removal, a few types of genes have self-splicing RNA introns. The RNA transcript of such a gene can carry out the entire ...

By Hugo Francisco de Souza Trained on genomic data spanning the tree of life, Evo 2 reveals how artificial intelligence can ...

The origin of the nucleus remains hotly debated among scientists, but new imaging and genomic data are shedding light on this billion-year-old mystery.

When Associate Professor Eliezer Calo PhD '11 was applying for faculty positions, he was drawn to MIT not only because it's ...

The most widely accepted scientific explanation for the arrival of all complex life on Earth has had an unsolved mystery at its heart. According to the theory, all plants, animals and fungi, known ...

In the oceans and on land, scientists are discovering rare, transitional organisms that bridge the gap between Earth’s simplest cells and today’s complex ones. By Carl Zimmer A flurry of new studies ...

The 2026 Priestley Medalist and Nobel laureate struggled with finding her way through school before achieving the greatest feats in science ...