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Preview: Scitizen Extrasolar Planets

Scitizen Extrasolar Planets

Extrasolar Planets : a collaborative news publishing initiative by scientists, for everyone.

Copyright: Copyright 2008, Take part Media, Inc.

A Dying Kick for Stars Like Our Sun?

2008-01-08 11:20:08

The explosive deaths of massive stars can catapult stellar remnants through space with a violent kick. But astronomers thought less massive stars, such as our Sun, were more sedate in their demise. Now, close inspection of a nearby star cluster has revealed these stars may also get a punt when they die...

Just Plain Weird: An Odd Star Proves to Be a New Type of Object

2007-12-05 10:35:14

On the night after Thanksgiving two years ago, I was at the Keck Telescope, trying to identify some very blue objects in the sky. I was looking for white dwarfs, which are the compressed ashes left behind when a low mass star ends its life. The technique I use, spectroscopy,...

Ad Astra! News and Discoveries from the the Cassini-Huygens Mission to Saturn

2007-10-29 13:01:24

The Cassini-Huygens mission was launched on 15 October 1997; 10 years later, we speak to Professor Andrew Coates, head of Planetary Science Group in the Department of Space and Climate Physics at University College London. In this interview, Professor Coates discusses the purpose and certain exciting...

Late Stages of Planetary System Evolution: the Case of V 391 Peg b

2007-10-12 11:15:35

Exoplanets are of high interest, not only because questions regarding alien life in the universe have accompanied humanity for a long time, but also because studying exoplanetary systems allows to study the past and the future of our own solar system.

Video : Emission Spectra of Extrasolar Planets

2007-04-16 14:22:09

We recently published an article by Jeremy Richardson describing "the first measured emission spectrum from two different planets orbiting other stars". Here is a video, produced by NASA, on this topic.

Another "First": Emission Spectra of Extrasolar Planets

2007-03-22 11:21:53

The rapidly-evolving field of research in extrasolar planets (or exoplanets) has achieved another milestone, with the announcement of the first measured emission spectrum from two different planets orbiting other stars. The results revealed a surprise: the water that was expected to be in the atmospheres...

Night and Day on an Alien World: Spitzer's Hidden Universe

2006-11-18 15:18:00

Astronomers have for the first time measured the temperatures varying across the surface of a planet beyond our solar system.

?This Kind of Planet Had Never Been Seen Before?

2006-10-19 16:15:00

Kailash Sahu is the leading author of a report published Nature in which he describes the finding of 16 new extrasolar planets in the center of the Milky Way galaxy, using the Hubble Telescope. He answers Scitizen?s questions.

?It?s just the excitement of the quest to not only find a planet that would be truly attractive and habitable, but one that has life?

2006-07-26 16:07:00

Webster Cash recently reported a new method to detect Earth-like planets around nearby stars using a space Telescope associated with a special shape occulter. He describes his finding for Scitizen.

?In the coming years we might be able to detect smaller planets and maybe approach what could be a telluric planet in the habitable zone?

2006-06-08 20:39:00

Christophe Lovis is co-author of an report published in Nature describing the discovery of three new extra-solar planets orbiting a star nearby [1]. He comments his finding for Scitizen.

Planets Birth Around Dead Stars: the First Proofs!

2006-04-14 19:03:00

NASA's Spitzer Space Telescope has uncovered new evidence that planets might rise up out of a dead star's ashes. The infrared telescope surveyed the scene around a pulsar, the remnant of an exploded star, and found a surrounding disk made up of debris shot out during the star's death throes...