Celestial AI Inc., a startup that develops optical technology for linking chips, has raised $250 million in funding at a $2.5 billion valuation. The Series-C1 investment comes a year after the ...

Mar. 13, 2025 — Astronomers have constructed the first detailed 3D map of the properties of cosmic dust in our home galaxy. For their map, the astronomers used 130 million spectra from ESA's ...

During this celestial event, the moon will slip into Earth's shadow for 65 minutes, taking on a deep reddish hue in what’s often called a "blood moon." While the eclipse will be visible ...

Early-rising UK stargazers are in for a celestial treat on Friday as a lunar eclipse takes place just before dawn. But for those who have not managed to catch a glimpse yet, here is the view from ...