Milky Way

Using a technique to block certain wavelengths of light, researchers hope to discover many more hidden pulsars

NASA and the German space agency ground the telescope on a plane, citing the astronomy community’s concerns over cost and productivity

A satellite will scour the Milky Way for exoplanets orbiting stars just like the sun

A high-speed fireball that struck Earth in 2014 looked to be interstellar in origin, but verifying this extraordinary claim required extraordinary cooperation from secretive defense programs

Scientists are beginning to dream of how a new generation of super-heavy-lift rockets might enable revolutionary space telescopes and bigger, bolder interplanetary missions

Revisiting a controversial claim, astronomers are laying bare deep uncertainties about our understanding of galactic centers

Kepler-1708 b-i appears to be a giant moon orbiting a Jupiter-sized planet thousands of light-years from Earth

The observatory has flawlessly unfurled its mirrors and sunshield—although more steps are needed before the science can begin

Independent concepts from each nation envision launching high-speed spacecraft on aspirational multigenerational voyages into the great unknown of interstellar space

In a fraction of a second, the outburst released as much energy as our sun produces in 100,000 years

The successful unfurling of the five-layered, tennis court-sized assemblage is a major milestone for the new observatory

The Imaging X-ray Polarimetry Explorer will probe the physics behind black holes, neutron stars and other dynamic cosmic objects