Milky Way Galaxy Shown to Be Teeming With Planets
13 years, 2 months ago

Milky Way Galaxy Shown to Be Teeming With Planets

Wired  

Just 20 years ago, astronomers had no direct evidence that planets orbited other stars. Now, researchers estimate the Milky Way galaxy contains a huge number of planets, with Earth-sized worlds vastly outnumbering the rest. "We find that, on average, every star has a planet, and since there are at least 100 billion stars, there are at least 100 billion planets," said astronomer Kailash Sahu of the Space Telescope Science Institute in Baltimore, Maryland, who co-authored the new study, appearing Jan. 11 in Nature. Unlike other detection methods, such as looking for the slight wobble a planet exerts on its parent star, microlensing can discover planets with many different masses and distances from their star. Because microlensing observations are known to miss a certain percentage of planets, the researchers could use statistical analysis to get the true number of exoplanets in the galaxy.

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History of this topic

Nasa Roman mission will be able to find ‘extreme planets’ using the xallarap effect
4 years, 1 month ago

Nasa Roman mission will be able to find ‘extreme planets’ using the xallarap effect

The Independent  

Sign up to our free weekly IndyTech newsletter delivered straight to your inbox Sign up to our free IndyTech newsletter Sign up to our free IndyTech newsletter SIGN UP I would like to be emailed about offers, events and updates from The Independent. Nasa’s Nancy Grace Roman Space Telescope will use a gravitational effect called microlensing to detect the far-off …

Planets Beyond Milky Way Discovered For The First Time
7 years, 1 month ago

Planets Beyond Milky Way Discovered For The First Time

News 18  

Astrophysicists have for the first time discovered a population of planets beyond the Milky Way galaxy, using data from NASA’s Chandra X-ray Observatory. Professor Xinyu Dai and postdoctoral researcher Eduardo Guerras made the discovery with data from the NASA’s Chandra X-ray Observatory, a telescope in space that is controlled by the Smithsonian Astrophysical Observatory. While planets are often discovered within …

Planets far beyond our galaxy discovered for the first time by astrophysicists
7 years, 1 month ago

Planets far beyond our galaxy discovered for the first time by astrophysicists

The Independent  

Sign up for our free Health Check email to receive exclusive analysis on the week in health Get our free Health Check email Get our free Health Check email SIGN UP I would like to be emailed about offers, events and updates from The Independent. Scientists discover new technique for finding hidden aliens The newly discovered planets ranged from the …

Scientists find planets in a galaxy outside Milky Way for the first time: All about it
7 years, 1 month ago

Scientists find planets in a galaxy outside Milky Way for the first time: All about it

India Today  

An astrophysics team from the University of Oklahoma has discovered for the first time a population of planets beyond the Milky Way galaxy. Representational Image According to the reports, Xinyu Dai, professor in the Homer L. Dodge Department of Physics and Astronomy, OU College of Arts and Sciences, with OU postdoctoral researcher Eduardo Guerras, made the discovery with data from …

Scientists discover earth's 'iceball twin' and it is 13,000 light years away
7 years, 10 months ago

Scientists discover earth's 'iceball twin' and it is 13,000 light years away

India Today  

The National Aeronautics Space Administration continues its venture into the unknown and has discovered yet another planet similar to ours. The exoplanet, situated nearly 13,000 light-years away, is about as massive as Earth and orbits its star at about the same distance Earth circles the sun. Whereas radial velocity searches look for planets in our immediate galactic neighborhood, up to …

Nasa scientists discover 'Iceball' Planet through microlensing technique
7 years, 10 months ago

Nasa scientists discover 'Iceball' Planet through microlensing technique

Firstpost  

An icy world, much colder than Pluto in our solar system, was found in orbit around a tiny star 13,000 light years away. The finding adds evidence that the number of planets in orbit around stars reduce closer to the center of a galaxy. Geoff Bryden, astronomer at JPL said “Although we only have a handful of planetary systems with …

NASA's Hubble space telescope spots a planet orbiting two stars
8 years, 6 months ago

NASA's Hubble space telescope spots a planet orbiting two stars

India TV News  

Astronomers using NASA’s Hubble space telescope have discovered a planet orbiting two stars in a system located about 8,000 light-years away towards the centre of our galaxy. "The ground-based observations suggested two possible scenarios for the three-body system: a Saturn-mass planet orbiting a close binary star pair or a Saturn-mass and an Earth-mass planet orbiting a single star," said David …

The Hubble telescope just discovered a planet in orbit around two suns
8 years, 6 months ago

The Hubble telescope just discovered a planet in orbit around two suns

Firstpost  

This is the first time that a three body system was discovered using the gravitational microlensing technique, which can be used to discover more planets. NASA scientists have discovered a gas giant as massive as Saturn in an orbit around two red dwarfs. When viewing two aligned stars from the Earth, the foreground star bends and amplifies the light of …

Nasa's planet hunting Kepler Space Telescope set to make announcement
9 years, 8 months ago

Nasa's planet hunting Kepler Space Telescope set to make announcement

Daily Mail  

Astronomers may be preparing to announce the discovery of a planet similar to Earth that has been found orbiting another star. Nasa is due to hold a news conference on Thursday to reveal the latest discoveries from its Kepler Space Telescope, which has been scouring the skies for planets outside our own solar system. Scroll down for video Astronomers with …

Scientists estimate Earth-sized planets could be common
14 years, 4 months ago

Scientists estimate Earth-sized planets could be common

The Hindu  

A group of astronomers has estimated that as many as one in four stars similar to the Sun could be orbited by Earth-size planets. A five-year observation of 166 stars within 80 light years of Earth, using the powerful Keck telescope in Hawaii, counted planets orbiting the stars, down to the smallest planets now detectable by telescopes. Although the smallest …

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