Hundreds of people who love the little planet that was dissed, gather every year in the Arizona town where Pluto was discovered. They celebrate scientific discovery, history and our solar system’s ...

A galaxy made almost entirely of dark matter, an elusive form of matter that doesn’t interact with light, was spotted by Hubble 250 million light-years from Earth.

The JUICE spacecraft captured its first detailed glimpse of interstellar comet 3I/ATLAS, revealing a glowing coma and sweeping tail.

For the past two decades, scientists have wondered about a bright, distinct striped pattern seen in radio waves emanating ...

What are some skywatching highlights in March 2026? A total lunar eclipse blood moon takes centre stage, Venus and Saturn cozy up for a conjunction, and we celebrate the vernal equinox.

The sun reaches the March equinox at 5:01 a.m. Eastern Daylight Time on March 20. This is when it crosses the equator heading northward. This moment marks the change of seasons: the beginning of ...

The orb will take on the spooky hue for about an hour on March 3 because of sunlight filtering through Earth's atmosphere ...

Interstellar Comet 3I/ATLAS nears a Jupiter flyby in March 2026. Track the gravity nudge, outgassing wildcard, and what changes next—today!!

The newly discovered object dubbed the Great Comet of 2026 may become visible to the naked eye during its close solar pass in April.

A rare celestial event will be taking place in the sky above California on Saturday night, as six planets are expected to be visible in what is being called a "planetary parade." ...

Before we say goodbye to our interstellar visitor, another close encounter is on its way. This one could be course-altering.