The object is far outside our galactic neighborhood, possibly billions of light-years away. But astronomers have seen similar objects closer to home. This glowing red question mark was captured in the ...

Caitlin O'Kane is a New York City journalist who works on the CBS News social media team as a senior manager of content and production. She writes about a variety of topics and produces "The Uplift," ...

Editor’s note: Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A cosmic object in the shape of a ...