“Our galaxy and Andromeda are both so big, there’s hardly any space between the two galaxies.” What is a “RR Lyrae” star? Consider this: not all stars shine as bright as each othe ...

More than half of all stars in the sky have one or more companions ... they skirt Sagittarius A* (Sgr A*), the supermassive black hole lurking at our galaxy's center, as close as 0.095 light ...

Prior to that 1915 discovery, scientists believed that all the stars in the night sky belonged ... has helped us learn a great deal about our own galaxy. "Without Andromeda as a proxy for spiral ...

But researchers have used the James Webb Space Telescope, a collaboration of NASA and its European and Canadian space ...

A close-up view of a prodigious number of stars in the Andromeda galaxy. Credit: NASA / ESA / B. Williams (U. of Washington) The Andromeda galaxy is a colossal marvel in our sky, hosting over 1 ...

Hubble's sharp imaging capabilities can resolve more than 200 million stars in the Andromeda galaxy, detecting only stars brighter than our sun ... galaxy uses up all the available interstellar ...

One of the mysteries of our galaxy and every other ... GN-Z11 also contains a very high density of stars. This all suggests that globular clusters are forming inside while a supermassive star ...

NASA recently released images of the Andromeda galaxy, an "enticing empire of stars" that ... from our own galaxy's history, according to NASA. Start the day smarter. Get all the news you need ...

It took a few billion years after the epoch for the galaxy to reignite and start forming new stars. "We have a measurement like this for only three other galaxies -- all isolated from the Milky ...

The Hubble Space Telescope has produced the most comprehensive survey of the Andromeda galaxy, revealing new clues about its history. The Hubble survey, assembled from over 1,000 orbits and ...