The detection of a predicted universal background of gravitational waves rippling across the fabric of space-time was announced last Wednesday by the NANOGrav consortium of over 190 scientists at more ...

Using Planck data from the cosmic microwave background radiation, an international team of researchers has observed a hint of new physics. The team developed a new method to measure the polarization ...

Primordial black holes are the earliest black holes thought to exist, and they vanished almost as fast as they came into being. As Stephen Hawking predicted, black holes don’t only draw particles in, ...

Instead of focusing on how fast the universe is expanding, they looked at the ages of some of the oldest stars in our galaxy.

Scientists propose a gravitational-wave method called the stochastic standard siren to measure the Hubble constant, offering an independent way to examine the universe’s expansion and the Hubble ...

Faint cosmic glow appears to be remnant radiation from first stars or black holes born in our universe The deepest reaches of space are permeated by a cloak of infrared radiation, an uneven energy ...