Iran’s president says Tehran has rejected direct negotiations with the United States in response to a letter from President Donald Trump over its rapidly advancing nuclear program.

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

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

Scientists are studying nuclear pasta, dense formations within neutron stars with shapes akin to spaghetti and lasagna. This ...

Mining data from NASA's Chandra X-ray Observatory, the team of astronomers studied the relics that one star left behind after ...

The imminent explosion of T Coronae Borealis is expected to create a temporary 'new star' in the night sky this week ...

A 'new' star will briefly be visible in the direction of Orion if, as NASA experts believe, the so-called Blaze Star goes ...

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

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

A research team linked nearby stellar explosions to at least one, possibly two, mass die-offs after calculating the supernova ...

For the first time, scientists have directly measured a weak r-process reaction using a radioactive ion beam, shedding light ...