The interstellar plasma is turbulent and scatters pulsar radio waves slightly away from a direct, straight line path. The ...

As the Hubble Space Telescope approaches 35 years since its launch, marking over three decades of incredible images of the universe and science, NASA and its partner, the European Space Agency, are ...

Astronomers have long struggled with a troubling puzzle: a significant portion of normal matter in the universe appeared to ...

The Webb telescope has spotted exoplanets circling white dwarf stars, proving that planets can survive their star’s violent ...

Why didn’t authorities evacuate homes in Lexington near the source of a gas leak? No one is saying, but fire officials across ...

The rotating disk galaxy, mostly made up of dark matter, was discovered within a larger cloud of fast-moving hydrogen gas.

A blob of gas seen outside the Milky Way could be a type of starless, dark matter–dominated galaxy. Some scientists are skeptical.

Mysterious dark matter makes up 85 percent of matter in the universe, and of the remaining 15 percent, scientists couldn’t account for half—until now.

Most people know that black holes are kind of scary. Admittedly, that's true, but black holes are so much more than that.

About half of the non-dark matter in the universe cannot be accounted for by stars and galaxies alone. Now, scientists say previously undetected clouds of hydrogen gas could finally reveal it.

One such moment was when space craft sent back images of the Earth for the first time. Another is the discovery of life on ...

Astronomers may have found the long-missing half of the universe's regular matter—and it appears to have been right under our ...