New gravitational lensing measurements by the TDCOSMO Collaboration support the Hubble Tension, confirming differences between Early and Late Universe Hubble Constant values using updated ...

The stars in our galaxy exhibit a curious chemical division, but is this the norm in the Universe? A recent study shows that this peculiarity is not a general rule, opening the door to a ...

For the first time, astronomers have captured the brilliance of a superluminous supernova via gravitational lensing.

Across science and culture, some of the most revealing stories begin with a simple problem: something appears where it should ...

The X‑arithmetic technique offers a powerful new way to map the physics of other galactic structures across the universe and ...

JWST uncovers evidence of ancient “monster stars” whose extreme chemistry may explain the origins of early supermassive black ...

The space agency said supernovas typically brighten rapidly over a period of several weeks before they slowly start to dim. This example, however, took months to ...

In a glimpse of the early universe, astronomers have observed a galaxy as it appeared just 800 million years after the Big ...

New measurements using gravitational lensing suggest the universe’s current expansion rate does not agree with signals from ...

Supernovae aren't one of the JWST's main science themes, but the perceptive telescope is full of surprises. Recently, it ...

Cosmic dawn galaxies seen by JWST reveal hidden clues about dark matter and keep rival theories about its true nature alive.

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...