Searches for dark matter particles have come up empty so far, driving theorists to get more creative with their ideas.

Scientists have captured the first direct images of colliding objects in a neighboring star system. Astronomers have seen the ...

NBC News' Gadi Schwartz reports on "3I/ATLAS," mysterious outer space object that is thought to be billions of years old, ...

Astronomer Avi Loeb argued that other objects like interstellar visitor 3I/ATLAS could be useful for reaching out to aliens, if they exist.

Interstellar object 3I/ATLAS continues to display a Sun-facing anti-tail, confirmed by Hubble, Gemini and XMM-Newton ...

A single photograph taken from orbit has managed to make a rare visual connection between the mundane life on Earth and the ...

A number of residents living in New York, and surrounding states on the East Coast, reported seeing a fireball streaking across the sky.

When the interstellar object known as 3I/ATLAS passed Earth on Dec. 19, 2025, astronomers around the world trained their ...

The initial magnitude scale was established by Greek astronomer Hipparchus around 135 B.C.E., categorizing approximately 850 stars into six ranges from 1st (brightest) to 6th (faintest) magnitude.

The first pulsar was discovered in 1967 by Jocelyn Bell Burnell. Finding these mysterious signals forever changed astronomy.

Astronomy day 2025 is upon us! To celebrate, we've picked six targets to emphasize the variety and scale of objects visible in the night sky that will make for a beautiful and rewarding sight, whether ...

Members of the Case Western Reserve University community are invited to hear from Kelsey Johnson, professor of astronomy and director of the Echols Scholars Program at the University of Virginia, at ...