Tags » Brown Dwarf

Astronomy: Venus-Mass Planet Orbiting Brown Dwarf

An international team of Polish, Korean, American, Israeli, and Italian astronomers have announced the unusual discovery of a Venus mass planet OGLE-2013-BLG-0723LB/Bb, orbiting a cool brown dwarf star. 359 more words

GSE2 - Surprise Dwarfs and Water Giants

Two weeks out and I’ve put another few hundred light years behind me. I’ve been making maximum jumps. At first it was to just get where I was going. 981 more words


brown dwarf weather, anyone?


Concept art shows “what the weather might look like on cool star-like bodies known as brown dwarfs. These giant balls of gas start out life like stars, but lack the mass to sustain nuclear fusion at their cores, and instead, fade and cool with time.” (Spitzer/JPL)

Science & Technology

The Fate of Top Down Planets

Avid readers may remember a few years ago I blogged about the statistics of objects formed by disc fragmentation. In our paper, we looked at tidal downsizing, to see if big fluffy disc fragments with masses bigger than Jupiter could form solid cores and lose their gas to become objects of Neptune, maybe even Earth masses.   610 more words


Our Five-Trillion-Mile Close Call: the Star(s) That Skimmed the Solar System

It’s like something out of a Hollywood film or a science fiction novel: a dark star sneaks up on Earth from just outside the Solar System, discovered too late to do anything about it (and really, what could we do?) and plows through the cloud of comets that surrounds the Sun like a haze of icy gnats, sending them flying everywhere… including on collision courses with Earth. 551 more words


The Strange Case Of The Missing Dwarf - New SPHERE Instrument Shows Its Power

Snow White hasn’t lost a dwarf, but science has, or rather, how new technology disproved a hypothesis.

The new SPHERE instrument on ESO’s Very Large Telescope has been used to search for a brown dwarf expected to be orbiting the unusual double star V471 Tauri. 786 more words

Breaking News