Gravitational Lensing
Formation-Flying Spacecraft Could Probe the Solar System for New Physics
It's an exciting time for the fields of astronomy, astrophysics, and cosmology. Thanks to cutting-edge observatories, instruments, and new techniques,…
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…
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…
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…
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…