Prima pagina › Fonti

Cosmos

Le fonti da cui sono tratti gli articoli inseriti nella sezione Documenti di Elettroni.

Outlandish planet has wonky orbit
20 Nov 2009 - 00:26 | Heather Catchpole

SYDNEY: Astronomers have found an extrasolar planet with an "outlandish orbit" that circles its star either backwards, or at an angle of around 90º to the orientation of the star's rotation.

Planets in our own Solar System orbit in the same plane and direction as the Sun's own rotation. This led astronomers to propose the 'nebula hypothesis' - whereby planets form from a flat, swirling disk of gas around a proto-Sun.

First "serious candidate" for ocean planet
22 Apr 2009 - 21:18

PARIS: Astronomers have unveiled the lightest exoplanet ever detected and, in the same distant solar system, the first “serious candidate” for a world with abundant liquid water, both conditions thought important for supporting life.

Biggest star ever found
13 Giu 2007 - 17:36 | Janette Ellis

SYDNEY: Astronomers have unveiled both the biggest star and the most distant black hole ever found. These twin discoveries bring experts a few steps closer to unlocking the secrets of the early Universe.

Revealed last week at a meeting of the Canadian Astronomical Society in Kingston, Ontario, the finds easily exceed the previous record-holders and provide clues about the composition of the Universe soon after the Big Bang.

Hubble sights gas giant's escaping atmosphere
6 Feb 2007 - 22:13

SYDNEY: A planet 150 light years from Earth is so close to its sun that its atmosphere is literally boiled away, streaming behind it like a comet’s tail.