|
|
|
|
|
10th Shabanul Mujam 1436 | Thursday, May 28, 2015
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

Painter killed by younger brother for property

A 35-year-old painter was allegedly killed by his younger brother following a dispute over ancestral ...

Labourer falls in manhole, dies

A 52-year-old labourer died after accidentally falling into a manhole while cleaning it. According to Saroornagar police, the deceased, ...

Engineering student among two killed in ro...

A 20-year-old student died on the spot while his friend got injured when the motorcycle they were riding on lost control and hit a road divi ...

Related News

Did the `first murder` on Earth take place 430,000 yrs ago?

Scientists have identified lethal wounds on a 430,000 years old human skull, which may have been the ...

Scientists use bacteria to detect cancer, diabetes

Two research teams said they have used Escherichia coli (E. coli) as diagnostic tools to detect live ...

NASA testing new Mars lander for 2016 landing

In March 2016, NASA will send a unique Mars lander to explore the Red Planet's deep interior to find ...

Post new comment

To combat spam, please enter the code in the image.

Rs. 26730 (Per 10g)

Opinion Poll
Should mercy killing be legalised in India?
YesNoCan't say

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

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