In any globular cluster, all its stars formed at the same time, from the same cloud of gas. The Milky Way has around 150 ...

Ballycroy Community Centre will play host to a mobile planetarium, ‘Pale Blue Dot’, on September 20. Pale Blue Dot will be ...

There's something celestial—even magical—about the intersection of astronomy and astrology, which is why so many months in ...

Vibrant auroras could be visible as far south as Oregon and Pennsylvania tonight as Earth reels from a "strong" G3-class ...

A partial lunar eclipse of the Super Harvest Moon is coming on Sept. 17, 2024. Here's how you can watch it online for free.

What will look like a new star in the sky will actually be a nova — an exploding star, NASA says. Here's how to see it.

Researchers have developed a model for revealing what the color of a galaxy tells about its distance, to be used for measuring cosmic structures. Using telescopic observations and spectroscopy, ...

Excessive artificial light at night (ALAN) doesn't just pollute the sky. It may also pollute the brain. That's according to a ...

A shroud of gas stretches up to a million light years around every galaxy and is its first interaction with the wider ...

The results are in line with theory — but the key to an accurate measurement was understanding how dusty the galaxy is.

An explosion in space so massive you'll be able to look up and see it in the night sky without a telescope could ... different happened, leading us to figure out more information, which is really ...