Light pollution has become an unavoidable facet of modern life. Artificial light shines from homes, streetlamps and countless other sources, illuminating our cities and towns before inevitably bleeding into the

To ring in the new year, the Washington Monument was illuminated against the winter night with the number “250” on it in commemoration of the United States’ upcoming 250th anniversary.

Black holes may be invisible, but their influence shapes galaxies, modern technology and humanity’s understanding of its own limits. That was the message shared last week by Priyamvada Natarajan, a

A NASA research aircraft crashed in a fiery landing accident, but luckily none of the crew aboard the jet were harmed. One of NASA’s high-altitude WB-57 research jets skidded across

Look high above the southeastern horizon in the hours following sunset on Jan. 27 to see the waxing gibbous moon shine alongside the Pleiades open star cluster in the constellation

Not many fictional alien species get namechecked in number one records. So when a stop-motion animated incarnation of Lt Uhura started singing about “Klingons on the starboard bow” in The

We just learned about a pioneering U.S. spy satellite program, nearly 40 years after its final spacecraft launched to the final frontier. On Wednesday (Jan. 28), the U.S. National Reconnaissance

The most violent volcanic cataclysm ever seen in our solar system has been witnessed on Jupiter’s moon Io by NASA’s Juno spacecraft, with simultaneous eruptions covering an enormous 40,400 square

This article was originally published at The Conversation. The publication contributed the article to Space.com’s Expert Voices: Op-Ed & Insights. When Apollo 13 looped around the moon in April 1970,