Discover how lake stars form. The rare winter ice formations appear as star-shaped cracks on frozen lakes. They form when extremely cold air causes ice to expand and fracture outward from a central ...

Scientists are using modern technology to peer heavenward. This is an Inside Science story. Since ancient times, people gazing up at the night sky have seen animals, gods and goddesses, and other ...

New research shows weak black hole activity in red geyser galaxies prevents star formation despite ample gas, using observations of inflows, outflows, and galaxy interactions.

Astronomers have discovered a vast, dense cluster of massive galaxies just 1 billion years after the Big Bang, each forming ...

Stars form in the universe from massive clouds of gas. European Southern Observatory, CC BY-SA For decades, astronomers have wondered what the very first stars in the universe were like. These stars ...

Stars usually form in clusters, which can also form in pairs or groups. Binary clusters (BCs) are defined as pairs of open clusters closely associated both in position and kinematics. They provide ...