3C 273, a quasar (super luminous active galactic nucleus), is observable with an 8-inch telescope despite its distance of over 2 billion light-years. Its luminosity is attributed to a supermassive ...

The Crescent Nebula, which lies in the constellation Cygnus the Swan, has plenty of names. Among them are NGC 6888, Caldwell 27, Sharpless 2–105, and LBN 203. Whatever you call it, this object is a ...

These topics air Friday March 21, 2014 at noon and 8pm on 90.5 WESA. To leave a question or comment before or after the show dial 412-256-8783. Join the conversation LIVE between 12pm & 1 pm weekdays ...

What do Martha the last passenger pigeon, a fragment from Plymouth Rock and Julia Child’s kitchen have in common? Each of these objects tells an important part of America’s story. These and 98 other ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Astronaut Neil Armstrong's spacesuit rubs shoulders with Muhammad Ali's boxing robe, as well as ...

What do a Singer sewing machine, the Declaration of Independence and Dorothy’s ruby slippers have in common? These three objects (and 98 others) are a vital part of the history of our country. What do ...