The universe contains roughly 18 galaxies for every person on Earth. With such profusion, is there any reason why any of them should particularly catch our notice? Halton Arp had the answer. Born in ...

Arp 4 is a galactic duo immortalized by the Hubble Space Telescope. In the image, a small bright spiral appears to be orbiting around a larger, darker companion. However, this apparent proximity ...

Arp 184 or NGC 1961, a skewed or "peculiar" spiral galaxy, is still stunning in this image from the Hubble Space Telescope. One of the 338 formations cataloged by astronomer Halton Arp in 1966 in his ...

American astronomer Halton Christian Arp passed away in Munich, Germany, on December 28. He was 86. Arp was a world-renowned expert on interacting and merging galaxies. His 1966 book Atlas of Peculiar ...

Halton Arp was an astronomer who faced scientific exile after daring to question the Big Bang theory of the universe’s creation Halton Arp, the award-winning American astronomer and protégé of Edwin ...

Add articles to your saved list and come back to them any time. Halton C Arp was a prodigal son of American astronomy whose dogged insistence that astronomers had misread the distances to quasars cast ...

Halton Arp, the award-winning American astronomer and protégé of Edwin Hubble, who has died aged 86, wrote a widely-used text, the Atlas of Peculiar Galaxies (1966); yet in the middle of his career he ...