If not in visible stars and galaxies, the most likely hiding place for the matter is in the dark space between galaxies.

Using a powerful combination of space-based measurements and Subaru’s advanced imaging, astronomers have discovered two rare companions, one of which enables a key test for NASA’s Roman Space ...

A NASA-led team is studying the construction of a railway in space for a pair of telescopes that will provide views of planet, star, and galaxy formation in unprecedented detail. The proposed Space ...

The European Space Agency (ESA) unveiled magnificent new images from its Euclid space telescope, representing the agency's first scientific discoveries from early observations. The project, which ...

Scientists have observed the largest-known rotating structure in the cosmos - a gargantuan thread-like assemblage of hundreds ...

On April 24, 1990, all 24,000 pounds of the Hubble Space Telescope were tucked away inside the Discovery space shuttle when it launched into space. Thirty-five years later, NASA says Hubble has proven ...

The distribution of HI hydrogen in the Whirlpool Galaxy (M51) as determined by the THINGS VLA survey extends far beyond the visible stars in the galaxy and its satellite NGC 5195 (marked by cross), ...

June is Dark Sky Month in Colorado, by proclamation of the governor. It’s a great reminder to look up and enjoy the night sky. Southeastern Colorado and Northern New Mexico have many places with ...

Of all the objects that you can view through a telescope, some of the most stunning to behold are the planets in our solar system, and the galaxies that lie far beyond it. But if you want to see more ...

Using a telescope typically means pointing it upward and hoping to land on something unique. You can find the moon, maybe a constellation, but after that, all those stars begin to look alike. So what ...