News articles tagged with 'Mars'
New NASA missions to investigate how Mars turned hostile
— 19 Nov 2011 15:46 | AstronomyMaybe because it appears as a speck of blood in the sky, the planet Mars was named after the Roman god of war. From the point of view of life as we know it, that's appropriate. The…
Sugar-grain sized meteorites rocked the climates of early Earth and Mars
— 2 Apr 2011 11:34 | AstronomyBombardments of 'micro-meteorites' on Earth and Mars four billion years ago may have caused the planets' climates to cool dramatically, hampering their ability to support life, according…
When is an asteroid not an asteroid?
— 30 Mar 2011 17:37 | AstronomyOn March 29, 1807, German astronomer Heinrich Wilhelm Olbers spotted Vesta as a pinprick of light in the sky. Two hundred and four years later, as NASA's Dawn spacecraft prepares to…
The scars of impacts on Mars
— 5 Mar 2011 13:24 | AstronomyESA's Mars Express has returned new images of an elongated impact crater in the southern hemisphere of Mars. Located just south of the Huygens basin, it could have been carved out by…
Tool makes search for Martian life easier
— 9 Feb 2011 17:02 | AstronomyFinding life on Mars could get easier with a creative adaption to a common analytical tool that can be installed directly on the robotic arm of a space rover…
Rare meteorites reveal Mars collision caused water flow
— 3 Feb 2011 17:33 | AstronomyRare fragments of Martian meteorites have been investigated at the University of Leicester revealing one of the ways water flowed near the surface of Mars…
Mars Express close flybys of Martian moon Phobos
— 22 Jan 2011 09:53 | AstronomyMars Express has returned images from the Phobos flyby of 9 January 2011. Mars Express passed Mars' largest moon at a distance of 100 km…
Discovery could reveal secrets of ancient Martian and terrestrial atmospheres
— 9 Nov 2010 11:40 | AstronomyChemists at UC San Diego have uncovered a new chemical reaction on tiny particulates in the atmosphere that could allow scientists to gain a glimpse from ancient rocks of what the atmospheres…
Mars volcanic deposit tells of warm and wet environment
— 31 Oct 2010 18:16 | AstronomyRoughly 3.5 billion years ago, the first epoch on Mars ended. The climate on the red planet then shifted dramatically from a relatively warm, wet period to one that was arid and cold.…
Study links fresh Mars gullies to carbon dioxide
— 30 Oct 2010 16:59 | AstronomyA growing bounty of images from NASA's Mars Reconnaissance Orbiter reveals that the timing of new activity in one type of the enigmatic gullies on Mars implicates carbon-dioxide frost,…