A faint radio "whisper" from ancient hydrogen reveals the universe was heating up long before it filled with starlight.

The universe is truly magical: vast, mysterious, and endlessly fascinating. There’s something almost unreal about being able ...

"This finding is the first direct evidence of water’s interstellar journey from clouds to the materials that form planetary ...

Pulsars could be helping scientists distinguish between gravitational waves caused by supermassive black hole collisions and ...

For the past decade, gravitational wave astronomy has opened our eyes to amazing cosmic phenomena thanks to LIGO, the Laser Interferometer Gravitational-wave Observatory. Bob McDonald celebrates LIGO ...

It wasn’t until Albert Einstein that we developed a more sophisticated mathematical understanding of time and space that allowed physicists to probe deeper into the connections between them. In their ...

Ta-da! The lights were on. But because there's so much murk in the cosmic dawn, and because it's so dim and far away across ...

Starfront Observatories allows amateur astronomers to rent a spot for their telescopes and photograph the cosmos over a ...

Artist’s interpretation of two massive black holes (MBHs) within a galaxy. A tidal disruption event unfolds around the MBH that resides away from the galactic center and matter from a disrupted star ...