A distant Sun-like star suddenly went dark for months, stunning astronomers who quickly realized something massive was ...

There’s no mistaking Jupiter in the sky these Pottsville winter evenings, rising in the southeast as evening twilight ends.

Fall’s masterpiece on full display at Allegany State Park, where nature paints the hillsides in fiery hues that reflect perfectly on the serene lake waters. Photo credit: Daniel Alexander This isn’t ...

There’s no mistaking Jupiter in the sky these Butler winter evenings, rising in the southeast as evening twilight ends. In fact, you should be able to easily see it long before twilight fades.

Dark matter seems invisible, but it makes up most matter, and we have evidence that it gives the cosmos its shape. Now ...

Solar storms are eruptions that release some of the energy stored in the sun's strong magnetic field. These can create ...

For years, the James Webb Space Telescope has been spotting enormous black holes in the early universe that defy all ...

Cosmology and quantum physics both offer tantalizing possibilities that we inhabit just one reality among many. But testing ...

Black holes in the early Universe appear to have grown far faster than scientists once believed. Astronomers have long struggled to explain how black holes became enormous so early in the Universe’s ...

From planet-scorching stellar outbursts to cataclysms so powerful they shiver the very fabric of spacetime, these are some of the biggest blasts our cosmos has to offer ...

In a novel form of "skinny" bundling, DirectTV has "genre packs," like cereal brands, which include "MiEspanol," "MyKids," ...

Elon Musk makes first Davos appearance, joins Larry on stage and jokes about aliens, peace deals, and pension funds.