The SMITHSONIAN ASTROPHYSICAL OBSERVATORY is a part of the Smithsonian Institution which, in conjunction with the Harvard ...

GS-z13-1, marks the earliest sign yet spotted of the era of cosmic reionization at 330 million years after the Big Bang.

We still don't fully understand what triggers lightning. A new study suggests that showers of cosmic rays may be the missing ...

Muon tomography functions by detecting the number and arrival direction of sub-atomic particles called 'muons' that are ...

Scientists have revealed a hidden trigger of lightning that could resolve a centuries-old weather mystery. Earth is struck by some 44 bolts of lightning each second, on average. Despite this, ...

A strike on Odesa came shortly before a visit by President of the Czech Republic, Peter Pavel, who committed further aid to Ukraine's war-torn regions. Ukrainian officials reported multiple ...

Here’s how it works. The "cosmic pinwheel" that astronomers feared could one day shower Earth with lethal gamma rays may not be as dangerous as once thought, a new study suggests. At the heart ...

X-ray-emitting gas, providing key insights into its history. While this halo slowly cools over time, the black hole's jets act like a cosmic furnace, preventing new star formation despite the ...

DEIR-AL-BALAH, Gaza Strip (AP) — Israeli strikes killed at least 85 Palestinians across the Gaza Strip overnight and into Thursday, according to local health officials. Hours later, Hamas fired ...

The New York Court of Appeals, the state's highest court, blocked a law on Thursday allowing noncitizens to vote in local New York City elections. A former New York City Council member responded ...

Andrew McCutchen strikes out swinging. Advertisement Article continues below this ad 2 runs, 3 hits, 0 errors, 1 left on. Rays 3, Pirates 2. Rays seventh. Coco Montes strikes out swinging.