... Opportunity at Santa Maria Crater . ... Credit Copyright: Mars Exploration Rover Mission , NASA , JPL , Cornell ; Image Processing: Marco Di Lorenzo, Kenneth Kremer Explanation: Celebrating 7 years on the surface of the Red Planet , Mars exploration rover Opportunity now stands near the rim of 90 meter wide Santa Maria crater . ... Publications with keywords: Mars - Martian Rover . Publications with words: Mars - Martian Rover . ... Curiosity on Mars: A Wall of Gale Crater . ...

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• Jelly Donut Shaped Rock Appears on Mars
• A Martian Lake Bed
• Martian Dunes and the Shadow of Opportunity

... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...

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... 2011 January 29 . Opportunity at Santa Maria Crater . Credit: Mars Exploration Rover Mission , NASA , JPL , Cornell ; Image Processing: Marco Di Lorenzo, Kenneth Kremer . Explanation: Celebrating 7 years on the surface of the Red Planet , Mars exploration rover Opportunity now stands near the rim of 90 meter wide Santa Maria crater . Remarkably, Opportunity and its fellow rover Spirit were initially intended for a 3 month long primary mission. ... About APOD | ...

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• APOD: 2014 January 29 - Jelly Donut Shaped Rock Appears on Mars
• APOD: 2012 January 11 - Little Planet Lovejoy
• APOD: 2009 March 24 - Martian Dunes and the Shadow of Opportunity

Astronotes Armagh Planetarium's Stellar Blog! ... This image combines orbital imagery with 3-D modelling to show flows that appear in spring and summer on a slope inside Mars' Newton crater. ... Warm season flows on a slope in Newton Crater, possible evidence of salty liquid water active on Mars today. Image credit: NASA) . ... Frozen water is common on and under the surface of Mars but these images are the best evidence to date for the presence of liquid water on the Martian surface today. ...

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• A Rolling Stone on the Moon | Astronotes
• Kepler-10c: the First Mega-Earth | Astronotes
• Astronotes | Armagh Planetarium's astronomy news from across the Universe -

home publications > mercury . SEARCH ASP SITE: Match ALL words Match ANY word . ... ASP Conference Series . ... Mercury Magazine . ... White Mars: The Story of the Red Planet Without Water . ... Mars today is a dry planet, with an atmospheric pressure far too low to sustain liquid water on the surface. ... Hoffman describes his White Mars theory, and the reasons why the warm and wet model doesn't hold water. In Hoffman's view, Mars is a planet dominated by carbon dioxide, not water. ...

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• ASP: Star Science in the Autumn Sky
• ASP: How Do Planets Form?
• ASP: Mercury Magazine

My research efforts have focused on three areas which are: . More than 200 extrasolar planets have been discovered around relatively nearby stars, primarily through the Doppler line shifts owing to the reflex motions of their host stars, and more recently through transits of some planets across the face of the host stars. ... Gravitational microlensing provides a novel technique to look for planets around lens stars, and this is the only technique currently capable of detecting Earth-mass planets. ...

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• Dr Andrea Banzatti | STScI
• Habitable Worlds Across Time and Space
• Marshall Perrin's Publications

... General information . ... Staff . Research staff . ... Information . ... Historical highlights . Historical research . ... This process is thought to occur in circumstellar disks of gas and dust around young stars on rather short timescales : infrared surveys show that the number of low mass stars with disks drops dramatically for stars older than 10 Myr, suggesting that in order to form large solids before the disk disperses, the growth process has to take place within a few million years. ...

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• Pluto and Charon
• Uranus' Moon Ariel
• Mariner 10

The basic problems of the Laboratory are connected with researches of dynamics of minor planets and comets. ... THE ORBIT IMPROVEMENT of minor planets from optical and radar observations, . the utilization of minor planet observations for THE DETERMINATION OF ORIENTATION OF STAR CATALOGUES and DETERMINATION OF MASSES OF MINOR PLANETS BY DYNAMICAL METHOD, . THE ESTIMATION OF COLLISION PROBABILITY of minor planets with other bodies and with each other, . ...

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• (Untitled)

Armagh, 2nd May 2002. Saturn and Mars are at the top left, Venus is the very bright object and Mercury appears through the clouds. ... All five planets visible to ancient astronomers can now be seen in alignment in the western sky. ... Next is Venus, the brightest planet or "Evening Star", followed by Mars, a much fainter red planet, then Saturn (near the red star Aldebaran, the brightest star in Taurus), and finally, slightly higher in the sky, the largest planet Jupiter. ...

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• ASTRONOMICAL PHENOMENA FROM MARS
• Armagh Observatory
• Refereed Journal Publications 1999

. Uranus' edge-on rings appear as spikes above and below the planet. The rings cannot be seen running fully across the face of the planet because the bright glare of the planet has been blocked out in the photo (a small amount of residual glare appears as a fan-shaped image artifact, along with an edge between the exposure for the inner and outer rings). NASA, ESA, and M. Showalter (SETI Institute)

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• Proxima Centauri is a red dwarf star, so would it appear red from the surface
• Can you explain Mercury's retrograde motion? Do other planets appear to do this
• Dawnт??s Ceres color map reveals surface diversity | Astronomy.com

... Research . ... NASA's "follow the water" philosophy has led me to study atmosphere-regolith interactions on Mars in search for locations and times where liquid water is available. ... Transient liquid water and water activity at Gale crater Mars. ... Rivera-Valentin, E. G. , Chevrier, V. F., 2015. ... Icarus , 253, 156-158. Lopez Garcia, E. J., Rivera-Valentin, E. G. , Schenk, P. M., Hammond, N. P., Barr, A. C., 2014. ... Icarus , 237, 419-421. ... Chevrier, V. F., Rivera-Valentin, E. G. , 2012. ...

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• water ice on mercury
• Extra-solar planets
• Catalogs and Publications

... Pluto's orbit is also highly inclined -- tilted 17 degrees to the orbital plane of the other planets. ... Ground-based observations indicate that Pluto's surface is covered with methane ice and that there is a thin atmosphere that might freeze and fall to the surface as the planet moves away from the Sun. ... This is the first image-based surface map of the solar system's most remote planet, Pluto. ... This is the first surface map of Charon, the moon of the solar system's most remote planet, Pluto....