Physicist Sean Carroll explains how physics, astronomy, philosophy, and classics all help us understand the expanding ...

The “horizon” he points to isn’t a doorway to the divine, other scientists say. Yet, modern physics has been trying to answer questions once left to religion.

“For the last 20 years, people believed that the cosmological constant is positive, and the universe will expand forever,” says Tye, a professor emeritus at Cornell. A positive constant acts like a ...

The writers of Star Trek went above and beyond to make the universe as realistic as possible.

They show up as a mathematical solution in general relativity, basically as a time-reversed version of a black hole. Some ...

At the tail end of 2025, Brandon Sanderson left his massive Cosmere fantasy universe behind for his new short story collection Tailored Realities. But more surprisingly, the book largely leaves the ...

A dense network of sensors is looking for the fleeting footprints of neutrinos, the most mysterious in the pantheon of known particles.

From gamma ray bursts and supernova explosions to black holes and unknown alien life, we rank the scariest things in the ...

A newly detected X-ray transient may reveal the first direct evidence of an intermediate-mass black hole consuming a white dwarf. A newly observed cosmic outburst is giving astronomers a rare glimpse ...

The distinctive sound horses produce when they whinny is created by combining low and high pitch sounds together, like ...

Human intelligence wasn’t a cosmic evolutionary fluke, some scientists say. The case against cosmic loneliness is growing.

A physicist proposes that the universe might not be empty but act like a viscous fluid, resisting expansion. This bold idea ...