Every day, blocks of cooling rock tumble from the edges of a growing lava dome near the top of Great Sitkin Volcano, a ...

Sometimes discoveries do not begin with certainty, but with confusion. That was exactly the case when US astronomer James ...

URGENT APPEAL - THE OBSERVATORY ISR 001 / 0526 / OBS 022  Arbitrary detention  Abduction / Ill-treatment and torture / ...

A bright full moon known as the flower moon will rise this May, reaching its peak this week and marking a seasonal shift ...

WASHINGTON (7News) — In today’s world, there are so many things we take for granted. For example, we simply trust that the time on our phones is accurate. A DMV military installation makes all that ...

After a brutal winter for much of the country, spring is finally in the air. Spring officially begins on Friday, March 20, at 10:46 a.m. ET, according to the U.S. Naval Observatory. It marks the ...

A 100-year-old mansion that neighbors the U.S. vice president’s residence in Washington, D.C., hit the market on Monday for $10.75 million. The Massachusetts Avenue home backs up onto Observatory ...

Wake up, astronomers—the universe is calling. The astronomical observatory equipped with world’s largest camera hit a key milestone on February 24, when a complex data-processing system pushed ...

The U.S. Navy wants commercial satellites that can perform nighttime observation of the Earth, according to a Naval Research Laboratory Request for Information. (Planet Observer/Universal Images Group ...

The multi-ton shutter section fell outward onto the roof of the Great Hall, crushing several structural beams. The Great Refractor telescope was not damaged during the incident, but its precision ...

A shocking murder rocks the U.S. Naval Observatory, sending the NCIS team into a high-stakes investigation. Watch NCIS on the CBS television network and stream on Paramount+. Uncommon knowledge: Trump ...