NASA and Boeing are preparing the Starliner for its next flight after technical issues left the spacecraft unable to ferry ...

The “dark energy” field that has fueled the expansion has been weakening over the past 4 billion to 5 billion years, new data ...

Scientists have developed an impossibly thin telescope lens that addresses a key astronomical challenge in a new study funded ...

Experts are not sure why Neptune's auroras can be seen around the planet's "mid-latitudes," and not the north and south poles ...

NASA said on Thursday it was moving toward certifying Boeing's CST-100 Starliner for crewed flights later this year or by ...

Earth crosses through Saturn’s “ring plane,” making the gas giant’s most iconic feature become nearly invisible ...

The James Webb Space Telescope has successfully detected auroras on Neptune for the first time ever, finishing a job that ...

The Estes Valley Astronomical Society is offering a free public lecture Saturday, March 29th at the Estes Park Memorial ...

NASA and Boom Supersonic just released an incredible photo capturing a shockwave emanating from the dark silhouette of the ...

What's on and in a star? What happens in an active galactic nucleus? Answering those questions is the goal of a proposed ...