Euclid this week delivered the first piece of a cosmic map — containing about 100 million stars and galaxies — that will take six years to create. These stunning 3D observations may help ...

An overabundance of antimatter in showers of charged particles that bombard Earth called cosmic rays could reveal the secrets of dark matter, the universe's most mysterious "stuff," a new study ...

Physicist Alan Guth, the father of cosmic inflation theory, describes emerging ideas about where our universe comes from, what else is out there, and what caused it to exist in the first place.

REBELS-25 seems to have other surprises that it is yet to fully divulge. For example, the early galaxy appears to have characteristics similar to those of the roughly 13.6-billion-year-old Milky ...

GLASSBORO, New Jersey (WPVI) -- If you've looked to the skies at dusk over the last few days, you may have seen a rare surprise. This is why astronomer Eddie Guerra is preparing for a comet ...

These objects are thought to be a source of galactic cosmic rays, the origins of which are currently a mystery. Understanding how this microquasar works could also help researchers learn more ...

An international team led by three researchers from the CNRS, the European Southern Observatory (ESO, Europe), and Charles University (Czech Republic) has successfully demonstrated that 70% of all ...

Astronomers have discovered the earliest strongly rotating galaxy ever seen that's well-organized rather than chaotic, challenging theories of cosmic evolution. When you purchase through links on ...

We can now measure the CMB—our single greatest piece of evidence about cosmic history—with a precision unimaginable at the turn of the millennium. We have mapped the distribution of galaxies ...

A mosaic of the cosmos made with Euclid Space Telescope data. Image: ESA/Euclid/Euclid Consortium/NASA, CEA Paris-Saclay, image processing by J.-C. Cuillandre, E. Bertin, G. Anselmi (CC BY-SA 3.0 ...

"This discovery presents a challenge: our cosmic surveys may not yet be large enough to map the full extent of these immense basins," study co-author Ehsan Kourkchi, an astronomer at the ...

One could argue that cosmologists had made little progress in our understanding of these basic facts since the discovery of the cosmic microwave background (CMB), the afterglow of the Big Bang ...