Tags » Brown Dwarf

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

Science

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

Sedna, 2012 VP113, And the Lost Orb Planet X

Sedna, 2012 VP113, And the Lost Orb Called Planet X

Astronomers,  astrophysicists,  astrobiologists, geologists, and other scientists have long looked for a Super Earth as an answer to perturbations in the orbits of the outer Solar Sytem planets. 1,679 more words

Space

on the Sizes of Stars

Stars are easy to understand.  The definition of a star is pretty clear: Stars are self-gravitating masses of gas* that sustain nuclear fusion in their cores.  689 more words

Astronomy

Water ice clouds discovered in distant brown dwarf

(Artist’s conception of brown dwarf WISE J085510.83-071442.5 – Photo Credit: Rob Gizis (CUNY BMCC/YouTube)

For the first time, astronomers have detected water ice clouds outside of our solar system in a newly discovered brown dwarf that’s believed to be as cold as the North Pole. 257 more words

Outside Our Solar System

Astronomers: 'First Evidence' Of Water Clouds Discovered Outside Solar System

WASHINGTON (CBS DC) – Astronomers say they’ve discovered water ice clouds on a “brown dwarf” just 7.3 light-years from Earth – the first candidate outside our own solar system to have direct evidence of water clouds. 401 more words

News