|
|
|
|
|
19th Ramzanul Mubarak 1436 | Monday, Jul 06, 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

Iran talks drama in knife-edge final act

Marathon Iran nuclear talks appeared to be stumbling today as foreign ministers grappled to resolve the last hurdles blocking a deal, amid w ...

No more US troops abroad to fight IS: Obama

US President Barack Obama said that local forces should be the main forces to fight the extremist group the Islamic State (IS) and currently ...

Kevin Hart wants 'small' wedding

Actor-comedian Kevin Hart wants his wedding to Eniko Parrish to be a "small" affair. The "Wedding Ringer" star proposed to Parrish on her ...

Related News

Caught in action: Pebbles making planets

Astronomers have detected a ring of rocks or what is called a belt of pebbles, thought to be a cruci ...

Oceans need big reduction in greenhouse gases

Our oceans need an immediate and substantial reduction of greenhouse gas emissions. Otherwise, there ...

Bees' DNA 'soup' may shed light into species' decline

Scientists have found that directly looking into the extracted "soup" of bees' DNA could help conser ...

Post new comment

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

Rs. 26010 (Per 10g)

Opinion Poll
Do you think 'Operation Late Nigt' of the city police should be continued during Ramzan too?
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