The irregular galaxy NGC 4485, captured by Hubble's Wide Field Camera 3 (WFC3). Blue dots on the right: new stars, pink, nebulas. Left, intact remaining part of NGC 4485 with hints of its ancient spiral structure. Image: NASA, ESA
New insight in galaxy evolution - space short science news

Hubble Telescope images indicate that the irregular galaxy NGC 4485 has been sideswepped by a larger galaxy, NGC 4490. This has led to the formation of new stars, and perhaps even planets.

This observation might serve as an example of this kind of interactions between galaxies when the universe was smaller, and galaxies were closer together, billions of years ago.

NGC 4485, 25 million light years away from us in the northern constellation Canes Venatici (the Hunting Dogs) shows some aspects of the complex evolution of galaxies.

Read the full story: NASA / Goddard Space Flight Center