Hubble's study reveals Andromeda experienced major galactic collisions, unlike Milky Way. Its satellite galaxies show unusual ...

Many people view stargazing as something simple and easy – just go outside and stare up at the night sky, right? It's more ...

A rare grouping of 10 celestial bodies is captured in a stunning new photo taken during last weekend’s great planetary parade ...

Answer: For near stars, astronomers use a method called parallax. During Earth’s orbit, near stars seem to shift their position against the farther stars. This is called parallax shift. By ...

If you missed the grand planetary alignment at the end of February, most of the planets aren't going anywhere. Mercury, Venus, Mars and Jupiter will all be visible just after sunset throughout early ...

In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...

Residents from areas such as the state of Florida and the Bahamas have been able to observe the spectacle in the night sky.

The night sky, seen from Earth, would appear completely different ... So, while the merger of the Milky Way and Andromeda will be a cosmic spectacle, its direct implications for humanity are ...

Nevada is one of very few places left in the country where there is so little artificial light the Milky Way is visible to the naked eye.

Matteo Paz built a machine-learning algorithm in high school to analyze heaps of data for NASA. He just won a $250,000 ...