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Latest Red dwarf Stories

hypothetical planet with two moons orbiting in the habitable zone of a red dwarf star
2014-03-04 12:04:51

Lee Rannals for redOrbit.com - Your Universe Online A team of astronomers from the UK and Chile have discovered three new planets classified as Super Earths. The planets are part of a group of eight new planets discovered orbiting nearby red dwarf stars. This study shows that virtually all red dwarfs have planets orbiting around them. Astronomers used the High Accuracy Radial Velocity Planet Searcher (HARPS) and Ultraviolet and Visual Echelle Spectrograph (UVES) telescopes for the...

How Many Habitable Exoplanets Exist
2013-11-26 13:17:30

John P. Millis, PhD for redOrbit.com - Your Universe Online In the last decade, exoplanet scientists have been finding new worlds at a brisk pace. But as the number of planetary bodies in our galaxy rises, questions about how many of these may, in fact, be habitable have been reaching a crescendo. The debate centers on the criteria for what it takes for a planet to be considered habitable. It seems the presence of liquid water on the surface is necessary, though some researchers are now...

Stellar Magnetic Fields Affect Possibility For Life Beyond Earth
2013-07-05 04:31:00

John P. Millis, PhD for redOrbit.com - Your Universe Online The presence of an atmosphere - among many other factors - is vital for the evolution of life as we know it on a planet. However, this seemingly simple requirement is bathed in a multitude of variables that can affect its creation and existence. Thus, establishing an atmosphere is by no means a trivial detail. Scientists believe mechanisms such as volcanic eruptions, other tectonic activity and even comet impacts could all play...

Clouds May Help Reveal More Habitable Planets
2013-07-02 05:48:46

April Flowers for redOrbit.com - Your Universe Online According to a new study from the University of Chicago and Northwestern University, the influence of cloud behavior on climate doubles the number of potentially habitable planets orbiting the most common type of stars in the universe, red dwarfs. In the Milky Way alone, the findings suggest, 60 billion planets may be orbiting red dwarf stars in the habitable zone. The study, published in Astrophysical Journal Letters, is based on...

Red Dwarf Stars May Destroy Possibility Of Life In Their Systems
2013-07-01 18:43:05

John P. Millis, Ph.D. for redOrbit.com - Your Universe Online Most of the stars in the Universe are classified as red dwarf stars - stars considerably smaller and cooler than our Sun. About 75 percent of the main sequence stars in our galaxy are classified as such, so they represent an exciting population to study in the search for life beyond Earth. If it were found that Earth-like planets formed around red dwarf stars, then the door would be opened to the possibility we might soon...

2013-06-03 12:22:32

WASHINGTON, June 3, 2013 /PRNewswire-USNewswire/ -- NASA's Hubble Space Telescope will have two opportunities in the next few years to hunt for Earth-sized planets around the red dwarf Proxima Centauri. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) The opportunities will occur in October 2014 and February 2016 when Proxima Centauri, the star nearest to our sun, passes in front of two other stars. Astronomers plotted Proxima Centauri's precise path in the heavens and...

Kepler Data Shows Light-bending Gravity In Action
2013-04-05 08:44:27

[ Watch the Video: Dead Star Warps Light of Red Star ] redOrbit Staff & Wire Reports - Your Universe Online NASA's Kepler space telescope has observed the effects of a dead star bending the light of its companion star, one of the first detections of this phenomenon in double star systems. The dead star, known as a white dwarf, is the burnt-out core of what used to be a star much like our sun. It is locked in an orbiting pattern with its partner, a small "red dwarf" star, which is...

Exoplanets In Our Own Back Yard?
2013-02-06 11:04:34

Lee Rannals for redOrbit.com - Your Universe Online Astronomers using NASA's Kepler space telescope have found that six percent of red dwarf stars have habitable, Earth-like planets. Red dwarfs are considered to be the most abundant stars in our galaxy, so it is feasible that one of these Earth-like planets could be just 13 light-years away, when taking into account the astronomers new research published in The Astrophysical Journal. The Harvard-Smithsonian Center for Astrophysics...

Our Galaxy Abounds With Planets Says New Study
2013-01-03 14:45:20

Lee Rannals for redOrbit.com - Your Universe Online Listen to the podcast “How Planets Form” with redOrbit's Dr. John Millis and planet-hunting expert Dr. Eric Mamajek of the University of Rochester. Astronomers from California Institute of Technology (Caltech) wrote in the Astrophysical Journal that our galaxy may be filled with more planets than researchers had previously thought — a discovery that could have deep implications for our understanding of the universe....

Life In The Habitable Zone Not Likely Around Cooling Stars
2012-11-21 06:54:18

April Flowers for redOrbit.com - Your Universe Online New planets are discovered by astronomers in strange places, such as orbiting around a brown or white dwarf star. This leads scientists to wonder if they might support life because although neither brown nor white dwarfs are stars like our sun, they both glow and so could be orbited by planets with the right ingredients for life. Although no terrestrial, or earth-like, planets have been confirmed orbiting white or brown dwarf stars,...


Latest Red dwarf Reference Libraries

6_9182d2d493640e91b36f6c6769af79e62
2004-10-19 04:45:42

Red Dwarf -- A red dwarf is a small star on the main sequence, either late K or M spectral type. They have a diameter and mass of less than one-third that of the Sun (down to 0.08 solar masses, which are Brown dwarves) and a surface temperature of less than 3,500 K. They emit little light, sometimes as little as 1/10,000th that of the sun. Due to the slow rate at which they burn hydrogen red dwarves have a enormous lifespan, estimates range from a tens of billions up to trillions of...

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