Mars Exploration Rover (MER) mission controllers at the NASA Jet Propulsion Laboratory (JPL) in Pasadena, California, have announced recently that the rover Opportunity finally managed to solve a mystery related to the nature of a rock formation called Pinnacle Island.
Exoplanets are uncanny. Some seem to have walked directly out of the best science-fiction movies. For example, we’ve discovered a planet consisting purely of water (GJ 1214b) and one with two suns (Kepler 16b). Some planets nearly scrape their host stars once every orbit, while others exist in darkness without a host star at all. The […]
The huge ocean sloshing beneath the icy shell of Jupiter’s moon Europa likely makes its way to the surface in some places, suggesting astronomers may not need to drill down deep to investigate it, a new study reports. Scientists have detected chemicals on Europa‘s frozen surface that could only come from the global liquid-water ocean […]
New maps of the subsurface of Mars show for the first time buried channels below the surface of the red planet. Mars is considered to have been cold and dry over the past 2.5 billion years, but these channels suggest evidence of flooding. Understanding the source and scale of the young channels present in Elysium […]