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“Cold Neptune” And Two Temperate Super-Earths Found Orbiting Nearby Stars

January 15, 2020

A “cold Neptune” and two potentially habitable worlds are part of a cache of five newly discovered exoplanets…
Collision Between White and Brown Dwarf Stars Probably Witnessed 348 Years Ago

October 11, 2018

In 1670 a french astronomer monk might have witnessed the collision between a white and brown dwarf star.…
When Is a Nova Not a ‘Nova’? When a White Dwarf and a Brown Dwarf Collide

October 8, 2018

Synopsis: Using ALMA, an international team of astronomers found evidence that a white dwarf (the elderly remains of…
When is a star not a star?

September 19, 2018

The line that separates stars from brown dwarfs may soon be clearer thanks to new work led by…
Stellar “swarms” help astronomers understand the evolution of stars

August 29, 2018

New work from Carnegie’s Jonathan Gagné and the American Museum of Natural History’s Jacqueline Faherty identified nearly a…
Is it a Massive Planet or a Tiny Brown Dwarf. This Object is Right at the Border Between Planet and Star

August 9, 2018

Rogue planets are a not-too-uncommon occurrence in our Universe. In fact, within our galaxy alone, it is estimated…
VLA Detects Possible Extrasolar Planetary-Mass Magnetic Powerhouse

August 3, 2018

Object is at boundary between giant planet and brown dwarf Astronomers using the National Science Foundation’s Karl G.…
Where’s the Line Between Massive Planet and Brown Dwarf Star?

January 26, 2018

When is a Brown Dwarf star not a star at all, but only a mere Gas Giant? And…
Scientists solve mystery of blinking brown dwarfs

August 18, 2017

Dim objects called brown dwarfs, less massive than the Sun but more massive than Jupiter, have powerful winds…
Scientists Improve Brown Dwarf Weather Forecasts

August 18, 2017

Dim objects called brown dwarfs, less massive than the Sun but more massive than Jupiter, have powerful winds…
NASA-funded Citizen Science Project Discovers New Brown Dwarf

July 19, 2017

One night three months ago, Rosa Castro finished her dinner, opened her laptop, and uncovered a novel object…
Surprise! When a brown dwarf is actually a planetary mass object

May 15, 2017

Sometimes a brown dwarf is actually a planet—or planet-like anyway. A team led by Carnegie’s Jonathan Gagné, and…
Nearby Brown Dwarf Appears to be a Free-Floating ‘Planet’

May 10, 2017

An international team of astronomers that included astrophysicists at UC San Diego has discovered that one of the…
Astronomers identify purest, most massive brown dwarf

March 27, 2017

An international team of astronomers has identified a record breaking brown dwarf (a star too small for nuclear…
Astronomers find evidence of water clouds in first spectrum of coldest brown dwarf

July 18, 2016

Since its detection in 2014, the brown dwarf known as WISE 0855 has fascinated astronomers. Only 7.2 light-years…
A new process behind the formation of brown dwarves discovered

May 23, 2016

Astronomers are observing relations between stars with utter curiosity. They are witnessing how one star, typically bigger, absorbs…
Stellar cannibalism transforms star into brown dwarf

May 20, 2016

Astronomers have detected a sub-stellar object that used to be a star, after being consumed by its white…
1 trillion kilometres apart: a lonely planet and its distant star

January 27, 2016

A team of astronomers in the UK, USA and Australia have found a lonely planet, until now thought…
Update: ‘Failed stars’ host powerful auroral displays

August 7, 2015

By observing a brown dwarf 20 light-years away using both radio and optical telescopes, a team led by…
Astronomers discover powerful aurora beyond solar system

August 5, 2015

Astronomers have discovered the first aurora ever seen in an object beyond our Solar System. The aurora —…
Brown Dwarfs, Stars Share Formation Process, New Study Indicates

July 25, 2015

Astronomers using the Karl G. Jansky Very Large Array (VLA) have discovered jets of material ejected by still-forming…
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