A hundred years ago, astronomer Edwin Hubble dramatically ... He believed that the nebulae were objects within the Milky Way. Charles Messier also produced a catalog of over 100 prominent nebulae in ...

Explore the living room, kitchen, bathroom and bedroom in this interactive house from 100 years ago. Click or tap on the objects in the living room to find out what family homes were like 100 ...

Hubble revealed a universe of galaxies that existed beyond ours — but he couldn't have done it without a little help.

Theorbits of Jupiter, Saturn, Uranus and Neptune may have been altered by the fly-by of an enormous object from deep space, billions of years ago. According to a pre-print research paper ...