News

Discovery of binary-binary calls solar system formation into question

20 October 2016 Astronomy Now

University of Florida astronomers have discovered the first “binary-binary” — two massive companions around one star in a close binary system, one so-called giant planet and one brown dwarf, or “failed star.” For such large companion objects to be stable so close together defies our current popular theories on how solar systems form.

News

Most distant massive galaxy cluster identified

8 January 2016 Astronomy Now

The early universe was a chaotic mess of gas and matter that only began to coalesce into distinct galaxies hundreds of millions of years after the Big Bang. It would take several billion more years for such galaxies to assemble into massive galaxy clusters — or so scientists had thought. Now astronomers have detected a massive, sprawling, churning galaxy cluster that formed only 3.8 billion years after the Big Bang, some 10 billion light years from Earth.

News

Whopping galaxy cluster spotted with help of NASA telescopes

3 November 2015 Astronomy Now

Astronomers have discovered a giant gathering of galaxies in a very remote part of the universe, thanks to NASA’s Spitzer Space Telescope and Wide-field Infrared Survey Explorer (WISE). The galaxy cluster, located 8.5 billion light-years away, is the most massive structure yet found at such great distances.

News

Peeking into our galaxy’s stellar nursery

6 October 2015 Astronomy Now

Astronomers have long turned their telescopes to the wide swaths of interstellar medium to get a look at the formation and birth of stars. A team of international researchers has just released the most comprehensive images anyone has ever seen of the Milky Way’s cold interstellar gas clouds where new stars and solar systems are being born.