Gravitational Lensing

The World's Largest Digital Camera is Complete. It Will Go Into the Vera Rubin Observatory

The Vera C. Rubin Observatory, formerly the Large Synoptic Survey Telescope (LSST), was formally proposed in 2001 to create an…

10 months ago

Dwarf Galaxies Banished the Darkness and Lit Up the Early Universe

During the Universe's Dark Ages, dense primordial gas absorbed and scattered light, prohibiting it from travelling. Only when the first…

12 months ago

JWST Sees a Milky Way-Like Galaxy Coming Together in the Early Universe

The gigantic galaxies we see in the Universe today, including our own Milky Way galaxy, started out far smaller. Mergers…

12 months ago

Webb Sees a Supernova Go Off in a Gravitationally Lensed Galaxy – for the Second Time

Nature, in its infinite inventiveness, provides natural astronomical lenses that allow us to see objects beyond the normal reach of…

1 year ago

Can Webb Find the First Stars in the Universe?

The Universe's very first stars had an important job. They formed from the primordial elements created by the Big Bang,…

1 year ago

An Epic Collaboration Between Hubble and JWST

Hubble and Webb have come together to create one of the most detailed and revealing images of an iconic galaxy…

1 year ago

Civilizations Could Use Gravitational Lenses to Transmit Power From Star to Star

A new paper shows how gravitational lenses could be used to beam power from one star system to another.

1 year ago

The Most Distant Galactic Field Lines Ever Seen

Galaxies are surrounded by magnetic field lines, spanning tens of thousands of light-years. These magnetic fields have previously been measured…

1 year ago

A New Way to Measure the Expansion Rate of the Universe: Redshift Drift

Almost all the galaxies in the Universe are speeding away from us because of the Big Bang and the acceleration…

1 year ago

A Gamma Ray Burst Lasted So Long it Triggered a Satellite Twice

amma-ray bursts are the most powerful explosions in the Universe, briefly outshining all the stars in their galaxy combined. They…

2 years ago