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

Portal Space Systems has raised $17.5 million to accelerate the development of a space vehicle with a solar thermal ...

The explosion released elements heavier than iron—like gold and platinum—through a process known as rapid neutron capture ...

Deaths of nearby massive stars may have played a significant role in triggering at least two mass extinction events in ...

A picturesque galaxy 40 million light-years away, NGC 5530 dazzles with its patchy spiral arms in the constellation Lupus.

People often think about archaeology happening deep in jungles or inside ancient pyramids. However, a team of astronomers has ...

When you think of archaeology, you might picture digging through ancient ruins or exploring hidden tombs. But scientists have ...

Plutonium discovered at the bottom of the ocean was found to be refuse from a kilonova that exploded close to Earth 10 million years ago. Kilonovas occur when binary neutron stars spiral closer and ...

Deep-sea samples reveal traces of past cosmic explosions, prompting researchers to seek further proof in lunar soil.

A type Ia supernova occurs when a white dwarf draws hydrogen from a companion. But Sirius A and B are too widely separated ...