On September 22, the Coronagraph Instrument on NASA's Nancy Grace Roman Space Telescope opened its eyes to cosmic light for the first time. The ultimate purpose of the instrument—which is commanded ...

This morning, NASA's SpaceX Crew-13 mission successfully launched to the International Space Station, commanded by NASA astronaut and former Caltech postdoc Jessica Watkins. The crew of four ...

Isaac Newton is typically portrayed as a solitary scientist with intense focus who was obsessed with power and deeply egotistical. But a new book by Caltech historians Jed Buchwald and Mordechai ...

In 1700, life was miserable everywhere. Nearly everyone was poor, most had to toil long days in fields just to feed their families, and half of all children died before adulthood. But throughout the ...

Intense, brief flashes of radio light called fast radio bursts (FRBs) travel across billions of light-years to reach Earth, passing through a fog of matter along the way. The bursts' origins are ...