News tagged with brown dwarfs

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Astronomers find extreme weather on an alien world

(PhysOrg.com) -- A University of Toronto-led team of astronomers has observed extreme brightness changes on a nearby brown dwarf that may indicate a storm grander than any seen yet on a planet. Because old ...

Sep 12, 2011
4.7 / 5 (10) 3 | with audio podcast

Comet Elenin poses no threat to Earth

(PhysOrg.com) -- Often, comets are portrayed as harbingers of gloom and doom in movies and on television, but most pose no threat to Earth. Comet Elenin, the latest comet to visit our inner solar system, is ...

Aug 17, 2011
5 / 5 (5) 12 | with audio podcast

Two new brown dwarf Solar neighbors discovered

Scientists from the Leibniz Institute for Astrophysics Potsdam (AIP) have discovered two new brown dwarfs at estimated distances of only 15 and 18 light years from the Sun. For comparison: The next star to ...

Jul 15, 2011
4.8 / 5 (16) 16 | with audio podcast

A night with the stars…in a conference room

(PhysOrg.com) -- Ancient astronomers looked up at the dark skies in wonder, as the stars marched by overhead like precision dancers. In the early 17th century, Galileo Galilei brought the world one step closer ...

Jun 01, 2011
5 / 5 (2) 2

Super cold brown dwarf or is it a planet?

(PhysOrg.com) -- In a month that has already announced the discovery of a brown dwarf 75 light-years from Earth, NASA’s infrared Spitzer Space Telescope has found what could prove to be an even cooler, ...

Mar 23, 2011 report
5 / 5 (7) 6 | with audio podcast

A very cool pair of brown dwarfs (w/ video)

(PhysOrg.com) -- Observations with the European Southern Observatory’s Very Large Telescope, along with two other telescopes, have shown that there is a new candidate for the coldest known star: a brown ...

Mar 23, 2011
5 / 5 (3) 3 | with audio podcast

Baby stars born to 'napping' parents

(PhysOrg.com) -- Cardiff University astronomers believe that a young star's long "napping" could trigger the formation of a second generation of smaller stars and planets orbiting around it.

Mar 09, 2011
4.6 / 5 (5) 1 | with audio podcast

Birth of a baby planet

(PhysOrg.com) -- University of Sydney astronomer, Professor Peter Tuthill, is one of an international team of astronomers who have announced a major step forward in the quest to find planets in orbit around ...

Mar 02, 2011
5 / 5 (9) 4 | with audio podcast

Can WISE find the hypothetical 'Tyche'?

(PhysOrg.com) -- In November 2010, the scientific journal Icarus published a paper by astrophysicists John Matese and Daniel Whitmire, who proposed the existence of a binary companion to our sun, larger than ...

Feb 22, 2011
4.6 / 5 (14) 16 | with audio podcast

Cool star is a gem of a find

NASA's Wide-field Infrared Survey Explorer, or WISE, has eyed its first cool brown dwarf: a tiny, ultra-cold star floating all alone in space.

Nov 10, 2010
4.8 / 5 (10) 1 | with audio podcast

Brown Dwarf Found Orbiting a Young Sun-Like Star

(PhysOrg.com) -- Astronomers have imaged a very young brown dwarf, or failed star, in a tight orbit around a young nearby sun-like star. The discovery is expected to shed light on the early stages of solar ...

Jul 29, 2010
4.9 / 5 (11) 4 | with audio podcast