Space & Physics

Kissing bugs are creeping across the U.S.—and they’re bringing Chagas disease with them.

A swarm of galaxies called the Bullet Cluster is the biggest, best natural laboratory for studying dark matter that astronomers have ever seen

The public can submit names to travel along with four astronauts on an orbital journey to the moon next year

The Perseverance rover’s new findings set the stage for bringing Martian samples back to Earth to test whether microbes once inhabited the Red Planet

Spacetime ripples from a black hole collision across the cosmos have confirmed weird aspects of black hole physics

A monumental sign of an atmosphere on TRAPPIST-1e could be the precursor to finally finding a living world around another star

A sweeping U.S. missile defense program comes with many risks, costs and uncertainties, analysts say

A common nasal spray shows promise in reducing COVID risk, but vaccine access remains tangled in policy in the U.S.

Some black holes get extremely massive. Is there an upper limit to their growth?

The answer to this supposedly simple particle physics question isn’t so simple

A type of bacteria found in clean rooms has an unexpected method of survival, with implications for planetary protection

Our understanding of cosmology hinges on how well we know our own local universe, which remains poorly mapped and poorly understood