The accelerating expansion of the universe is usually explained by an invisible force known as dark energy. But a new study ...

From ultracold silicon detectors in Texas to massive underground experiments, scientists are deploying new tools to catch ...

A NASA team using the Hubble Space Telescope found an object in space never recorded before, nicknamed “Cloud-9." ...

Hints of impossibly bright, massive objects in the infant universe have forced astronomers to rethink how the first cosmic ...

Researchers claim to have used NASA's Hubble Space Telescope to discover an entirely new type of celestial object: dubbed ...

Astronomers have discovered a remarkable new cosmic object using the Hubble Space Telescope: a cloud of dark matter and gas ...

Hubble has revealed a strange cosmic object called Cloud-9, a dark matter–dominated cloud with no stars at all. Scientists ...

Astronomers have discovered a new type of object that is a starless cloud that failed to form as a galaxy. Here's what to ...

A strange, starless cloud on the edge of a nearby galaxy is forcing astronomers to confront one of the biggest unknowns in ...

Chemistry deals with that most fundamental subject: matter. New drugs, materials and batteries all depend on our ability to ...

Scientists build ultra-sensitive detectors to study dark matter and dark energy, which make up most of the universe but remain unseen and poorly understood ...

WASHINGTON — For the first time ever, astronomers have confirmed the existence of a "failed galaxy," a massive, starless ...