"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 ...

Oumuamua and Comet Borisov in 2017 and 2019, respectively, created a surge of interest. What were they? Where did they come ...

Last fall, the scientific community went into a minor frenzy. A hunk of interstellar material had been sucked into the ...

Astronomers have officially announced the name of the largest structure in the known universe. It was reported earlier this ...

Astronomers may have found a star racing through our galaxy at an incredible speed—dragging a planet along with it! If ...

Why is Pluto no longer a planet? Discover the real reason behind Pluto’s reclassification as a dwarf planet and the science that led to this change.

The passing gravitational waves “stretch or contract the universe by around 20 meters [about 65 feet] or so,” says Matthew ...

In August 2006, the International Astronomical Union made the controversial, but correct, decision to demote Pluto from its ...

Astronomers may have discovered a scrawny star bolting through the middle of our galaxy with a planet in tow. If confirmed, the pair sets a new record for the fastest-moving exoplanet system, nearly ...

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

The James Webb Space Telescope has captured a belching protostar in its infancy. By studying the dust grains whirling around ...

"We are the first mission to be able to track space weather events in three dimensions routinely across the solar system." ...