ScienceDaily: Stars News |
- Stormy stars? Probing weather on brown dwarfs
- Hubble unveils a deep sea of small and faint early galaxies
- Ultra-bright young galaxies discovered
| Stormy stars? Probing weather on brown dwarfs Posted: 07 Jan 2014 02:06 PM PST Swirling, stormy clouds may be ever-present on cool celestial orbs called brown dwarfs. New observations suggest that most brown dwarfs are roiling with one or more planet-size storms akin to Jupiter's "Great Red Spot." |
| Hubble unveils a deep sea of small and faint early galaxies Posted: 07 Jan 2014 01:37 PM PST Scientists have long suspected there must be a hidden population of small, faint galaxies that were responsible during the universe's early years for producing a majority of stars now present in the cosmos. At last Hubble has found them in the deepest ultraviolet-light exposures made of the early universe. This underlying population is 100 times more abundant in the universe than their more massive cousins that were detected previously. |
| Ultra-bright young galaxies discovered Posted: 07 Jan 2014 01:37 PM PST Astronomers have discovered and characterized four unusually bright galaxies as they appeared more than 13 billion years ago, just 500 million years after the big bang. Although Hubble has previously identified galaxies at this early epoch, astronomers were surprised to find objects that are about 10 to 20 times more luminous than anything seen previously. |
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