On a crisp January evening, as the International Space Station (ISS) streaked across the sky at 17,500 miles per hour, ...

Geomagnetic storms are capable of sparking beautiful displays of the Northern Lights across our night sky. However, there is a potential danger behind that beauty, especially now, with solar activity ...

A G1 (minor) geomagnetic storm is often the result of Earth plunging into a fast stream of the solar wind, or when a small, ...

As dark moonless skies make new observations of asteroid 2024 YR4 possible, researchers are refining its orbit — and its ...

The threat of a newly discovered asteroid has risen slightly in the past few weeks, as the world’s telescopes rush to track ...

Every year on February 19 scientists across the world celebrate Copernicus Day. Learn about the man who changed how we view ...

Two bands of radiation called the Van Allen belts encircle Earth. After a May 2024 solar superstorm, two more showed up between those belts.

Ahead of its dance with Saturn on Feb. 24, Mercury should be seen on Feb. 19 at magnitude -1.2 with binoculars 20 minutes ...

Using NASA's James Webb Space Telescope, Northwestern astrophysicists gained the longest, most detailed glimpse yet of the supermassive black hole at the center of the Milky Way.

NASA scientists have detected a star and trailing exoplanet that may be sailing through the Milky Way with unprecedented ...

Planet demographics reveal a puzzling lack of worlds in a certain size range throughout the galaxy F or centuries our solar ...

A tiny star is making big moves — whether its accomplice likes it or not. Astronomers have spotted a star just a fraction the ...