Einstein’s claim that the speed of light is constant has survived more than a century of scrutiny—but scientists are still ...

Light can be sculpted into countless shapes. Yet building optical devices that can simultaneously manipulate many different ...

Mars, often depicted as a barren red planet, is far from lifeless. With its thin atmosphere and dusty surface, it is an ...

Astronomers announced the discovery of a starless cloud of hydrogen gas, a pristine relic of the cosmos that is almost as old as time itself.

Astronomers have revealed a new type of cosmic object called Cloud-9 — a dim, starless gas cloud anchored by a massive dark ...

A newly discovered celestial object may be a starless cloud that could change how astronomers understand dark matter.

A cosmic show is in the works this week, with the Northern Lights expected to make an appearance across parts of 15 northern ...