Webb maps Uranus’s upper atmosphere, revealing cooling temperatures, shifting auroras, and the effects of its tilted magnetic field.

In the distant reaches of the solar system are many icy objects that resemble snowmen. Now, a new study reveals the simple ...

Remember 3I/ATLAS? Yes, the interstellar comet that made plenty of headlines in 2025 is still romping through our solar ...

Nearly all of the solar system’s planets are about to file across the night sky in a planetary alignment, and it will be ...

Claude has an 84-page constitution, a so-called “soul document,” that aims “to avoid large-scale catastrophes” such as a “global takeover either by AIs pursuing goals that run contrary to those of ...

One of our universe's biggest stars has dramatically turned into a rare, yellow 'hypergiant' star, and astronomers aren't sure when it will go supernova.

A crash involving the planet’s largest moon, Titan, and a hypothetical moon may have triggered a curious sequence of events ...

The Defense Department has been feuding with Anthropic over military uses of its artificial intelligence tools. At stake are hundreds of millions of dollars in contracts and access to some of the most ...