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

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

A scientist analyzing Fermi telescope data found a strange glow around the Milky Way that looks like it could be coming from ...

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

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

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 ...

The new physical edition of Super Mario Galaxy's in-game picture book is back in stock at Amazon and on sale for its best price yet. Rosalina's Storybook launched November 25 with a $25 retail price, ...

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

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

In a groundbreaking discovery, astronomers have successfully discovered 53 new quasars powered by supermassive black holes ...