Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

Look up on a dark night and the stars seem scattered at random. Step back in scale, though, and the Universe looks nothing ...

Odd radio waves emanating from the ice don’t fit our model of particle behavior. Could they be a sign of dark matter?

The blank horizontal bar is the galactic plane area, which was excluded from the analysis to avoid strong astrophysical ...

In the leading model of cosmology, most of the universe is invisible: a combined 95% is made of dark matter and dark energy.

NASA's next big eye on the cosmos is now fully assembled. On Nov. 25, technicians joined the inner and outer portions of the ...

The beginning of winter is a great time to be taking up astronomy, with long dark nights and a multitude of bright stars on ...

For a long time, astronomers have noticed that stars rotate too quickly at the edges of galaxies, as if a hidden mass were ...

Using some of the world's most powerful telescopes, a team of researchers found more than 280 galaxies stretched in a line ...