Universe

The next year of science for the James Webb Space Telescope has been selected. It includes remote galaxy observations and, at last, a hunt for exomoons

A new generation of lab experiments is aiming to weigh neutrinos with astonishing accuracy

The Thirty Meter Telescope and Giant Magellan Telescope might need to compete for survival in the face of federal spending limits

A new catalog of more than 12,000 galaxy clusters is helping scientists better understand the universe’s clumpiness, dark energy and some of the smallest particles in the cosmos: neutrinos

Some of the faintest objects ever observed suggest that small galaxies were responsible for clearing the “fog” pervading the early cosmos

Scientists have proposed a new way to learn whether hypothetical particles called axions really exist—and whether axions make up most of the universe’s dark matter

Researchers have created ultraheavy versions of elements that have never existed before on Earth

The quasar, as bright as 500 trillion suns, has evaded astronomers for over 40 years because of its incredible luminosity

The Laser Interferometer Space Antenna (LISA) will open a new era in astronomy that brings scientists to the brink of studying gravitational waves from the beginning of time

Rather than ripping up our fundamental models of the universe, the unexpectedly big and bright galaxies spied in the early universe by JWST probably have astrophysical explanations

Images of possible planets around white dwarf stars suggest that some gas-giant worlds survive the deaths of their stellar host

The Laser Interferometer Space Antenna could discover gigantic ripples in spacetime from merging supermassive black holes and more