Gravitational Lensing
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…
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,…
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…
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.
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…
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…
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…
Gravitational Waves Can Be Gravitationally Lensed, and This Could Provide Another Way to Measure the Expansion of the Universe
Astronomers can never have enough ways to measure the expansion in the Universe, from nearby stars to distant quasars. A…
Astronomers See the Same Supernova Four Times Thanks to a Gravitational Lens
Thanks to a well-placed gravitational lens, a team of astronomers was able to observe a supernova four times!
Astronomers Have a New Way to Measure the Expansion of the Universe
A new method of measuring cosmic expansion uses multiple observations of a supernova in a lensed galaxy.