|
|
|
|
|
1st Zulqada 1435 | Thursday, Aug 28, 2014
Science

Galaxy may host 17 bn Earth-size planets

Tuesday, 8 January 2013
Comments(0)
Washington, January 08:

At least 17 billion Earth-size planets may inhabit the Milky Way galaxy, RIA Novosti reported citing a new study by US astronomers.

According to space.com website that carries news related to space and the NASA, a US research team has conducted an analysis of data collected by NASA's Kepler Space Telescope, and "determined that about 17 percent of stars in our galaxy harbour a roughly Earth-size exoplanet in a close orbit".

That translates to a minimum of 17 billion planets as there are about 100 billion stars in the Milky Way.

"These kind of rocky objects are everywhere," space.com quoted team member Francois Fressin, of the Harvard-Smithsonian Center for Astrophysics, as saying during a presentation of the study at the American Astronomical Society Monday.

The study, based on a simulation of Kepler telescope's work, has been accepted for publication in The Astrophysical Journal.

Launched March 6, 2009, NASA's Kepler mission simultaneously observes more than 156,000 stars and detects planets by looking for tiny dips in the brightness of a star when a planet crosses in front of it.

NASA reported Monday that the number of candidates discovered in the Kepler data has increased by 20 percent since the last Kepler catalogue was released in February 2012 and now totals 2,740 potential planets orbiting 2,036 stars.

Over a hundred candidates have been confirmed as planets so far, NASA said.

If Earth-like planets are found to exist everywhere, the next phase will start with scientists looking for traces of oxygen and water vapour in their atmospheres. This is the aim of the next NASA project, which will make regular spectral analysis of the atmospheres of Earth-type exoplanets.

----IANS

Latest News

Arun Jaitely to visit Lalu Prasad Yadav in...

Defence Minister Arun Jaitley will on Thursday visit Lalu Prasad Yadav in a hospital, a day after the Rashtriya Janata Dal​ chief underwen ...

Schizophrenia leads to IQ loss: study

People at greater genetic risk of schizophrenia could see a fall in IQ as they age, even if they do not develop the ment ...

Raina hits ton as India thrash England by 133 runs in second ODI

Indian batsman Suresh Raina hit a superb century as the visitors thrashed England by 133 runs in the ...

Related News

Earth can sustain more terrestrial plant growth

Our planet can produce much more land-plant biomass -- the total material in leaves, stems, roots, f ...

Composition of Earth’s mantle is differe...

A new study has helped researchers determine that the composition of Earth’s lower mantle is quiet different than previously thought. ...

Hubble provides best view of merging galax...

Astronomers have obtained the best view of merging galaxies in the distant Universe, which took place when the Universe was only half its cu ...

Post new comment

CAPTCHA
This question is for testing whether you are a human visitor and to prevent automated spam submissions.
Image CAPTCHA
Copy the characters (respecting upper/lower case) from the image.

Rs. 27560 (Per 10g)

Opinion Poll
Do you think KCR would continue celebrating all national events at Golconda Fort beginning from Independence Day?
YesNoCan't say

Matrimony | Photos | Videos | Search | Polls | Archives | Advertise | Letters

© The Siasat Daily, 2012. All rights reserved.
Jawaharlal Nehru Road, Abids, Hyderabad - 500001, AP, India
Tel: +91-40-24744180, Fax: +91-40-24603188
contact@siasat.com