A "classification" is when a volunteer or citizen scientist finishes marking up or sorting one image or other piece of data.

Astronomers from the University of Arizona have uncovered astonishing details about a galaxy that existed when the universe ...

University of Arizona astronomers have learned more about a surprisingly mature galaxy that existed when the universe was ...

Answer: For near stars, astronomers use a method called parallax. During Earth’s orbit, near stars seem to shift their position against the farther stars. This is called parallax shift. By ...

By looking ever further back in time, the James Webb Space Telescope is at last revealing the first galaxies – and a very strange young cosmos ...

JWST images reveal galaxy rotation patterns that challenge the Big Bang model. Could the universe be spinning?

At Redshift Wrangler, anyone with a smartphone or laptop can help clock the expansion of the universe using light from distant galaxies.Sadie ...

Planet demographics reveal a puzzling lack of worlds in a certain size range throughout the galaxy F or centuries our solar ...

Hunting for alien civilizations isn't a matter of just waiting around for them to show up; it's the business of combing through enormous volumes of data to look for peculiar signals.

Astronomers call a shift to longer wavelengths a redshift. It seemed that these redshifted galaxies were all moving away from the Milky Way. Hubble’s results suggested the farther away a galaxy ...