"Our Sun (Sol) is marked by a black hexagon, and its orbital path is indicated by a grey solid line (top row only). Alpha Centauri's location and path are shown by a yellow star and a solid blue line ...

On April 15, 1912, the night that the RMS Titanic sank, the skies over the northern Atlantic Ocean shimmered green […] ...

"We were very surprised to see that the same tiny plasma jets appear to be driving both the fast and the slow solar wind." ...

A powerful solar storm in May 2024 led to the formation of two radiation belts, altering Earth's space environment.

William Matthaeus, the Martin A. Pomerantz Chair of Physics and Astronomy at the University of Delaware, has won UD’s highest faculty honor — the Francis Alison Award — in recognition of his ...

An event called a "ring plane crossing" will occur between Saturn and Earth on March 23, 2025, when Saturn's rings will ...

The above 40-second video is sped-up footage of the new-found jets flashing briefly near the Sun’s south pole. In reality, ...

A NASA satellite that suddenly reappeared after going silent gets credit for the remarkable discovery—a pair of temporary ...

Temperamental' stars that brighten and dim over a matter of hours or days may be distorting our view of thousands of distant planets, suggests a new study.

Astronomers have finally unlocked a crucial piece of the planet formation puzzle by detecting the magnetic fingerprint of a ...

Radiation belts are a normal part of the architecture of a planet with a global magnetic field. Stars are constantly leaking particles, borne by a stellar wind; these stream out and, where they ...

Solar Orbiter has revealed that tiny, hair-like jets in the Sun’s coronal holes are responsible for both fast and slow solar ...