US and Canadian astronomers say they\'ve seen a spiral galaxy born in the early universe billions of years before that kind of galaxy should have formed. The distant spiral galaxy, observed by the Hubble Space Telescope, is being seen as it existed roughly 3 billion years after the big bang since light from this part of the universe has been traveling to Earth for about 10.7 billion years. \"As you go back in time to the early universe, galaxies look really strange, clumpy and irregular, not symmetric,\" study co-author Alice Shapley, a UCLA associate professor of physics and astronomy, said. \"The vast majority of old galaxies look like train wrecks. Our first thought was, why is this one so different, and so beautiful?\" The mix of galaxy structures in the early universe was quite different, with a much greater diversity and larger fraction of irregular galaxies, Shapley said in a UCLA release Wednesday. So the graceful form of this early galaxy has astronomers expressing surprise. \"The fact that this galaxy exists is astounding,\" lead study author David Law of the University of Toronto said. \"Current wisdom holds that such \'grand-design\' spiral galaxies simply didn\'t exist at such an early time in the history of the universe.\" A \"grand design\" galaxy has prominent, well-formed spiral arms. Law and Shapley think the answer to the unexpected shape may have to do with a companion dwarf galaxy and the gravitational interaction between the two galaxies.
GMT 11:16 2018 Tuesday ,23 January
Oil slick off China coast trebles in sizeGMT 12:29 2018 Sunday ,21 January
Spotted hyena returns to Gabon park after 20 yearsGMT 11:18 2018 Friday ,19 January
China says air quality 'improved' in 2017GMT 23:57 2018 Thursday ,18 January
for Great Barrier Reef rescue ideasGMT 23:50 2018 Thursday ,18 January
1.5 C climate goal 'very unlikely' but doableGMT 12:18 2018 Thursday ,18 January
Worst-case global warming scenarios not credible: studyGMT 10:44 2018 Thursday ,18 January
Second giant panda cub born in MalaysiaGMT 08:06 2018 Tuesday ,16 January
Oil tanker's sinking off China raises environmental fears

Maintained and developed by Arabs Today Group SAL.
All rights reserved to Arab Today Media Group 2025 ©
Maintained and developed by Arabs Today Group SAL.
All rights reserved to Arab Today Media Group 2025 ©
Send your comments
Your comment as a visitor