Pune: Anyone fascinated by the night sky full of stars has likely wondered their distance from Earth. A recent study led by ...

A variable star is one that doesn't shine with a constant brightness and scientists at Pune based Inter-University Centre for Astronomy and Astrophysics (IUCAA) utilized 40 oxygen-rich Mira variable ...

“This new evidence is suggesting that our Standard Model of the universe is holding up,” said UChicago Prof. Wendy Freedman, a leading figure in the debate over this rate of expansion, known as the ...

Is the Hubble constant—a key part of how we measure the expansion of our universe—in a crisis? Some cosmologists say yes.

If we know the maximum brightness of these supernovae, measuring their apparent luminosities allows us to calculate their distance.

The Hubble tension just got tenser — with new measurements revealing that the universe is expanding faster than our current understanding of physics can explain.

To destroy enough matter to explain the Hubble tension, black holes would have to merge at an unrealistic rate.

The Universe really seems to be expanding fast. Too fast, even. A new measurement confirms what previous -- and highly debated -- results had shown: The Universe is expanding faster than predicted ...

New research by the Atacama Cosmology Telescope (ACT) collaboration has produced the clearest images yet of the universe's infancy—the earliest cosmic time yet accessible to humans. Measuring ...

The Universe May Be Rotating Once Every 500 Billion Years, And It Could Explain The Hubble Tension A new, rotating "dark fluid" model could explain one of the trickiest problems in physics.

The Hubble constant, a set number that connects a galaxy’s speed to its distance from Earth and tells us how fast the universe is expanding, was first described more than a hundred years ago ...

Earth and our entire Milky Way galaxy may sit inside a mysterious giant hole which makes the cosmos expand faster here than in neighboring regions of the universe, astronomers say.