Posts in category

Solar System


NASA prepares robot to traverse beneath oceans of Europa

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Solar Orbiter on way to explore Sun’s polar regions

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Mining the sky

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Charley Kohlhase has been our ambassador to the planets

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This false color composite shows more than half of Earth’s disk over the coast of Argentina, South America and the South Atlantic Ocean as NASA’s Juno probe slingshotted by on Oct. 9, 2013 for a gravity assisted 
acceleration to Jupiter. The mosaic was assembled from raw images taken by the Junocam imager. 
Juno will arrive …

NASA’s Cassini spacecraft captured color images of Earth and the moon from its perch in the Saturn system nearly 900 million miles (1.5 billion kilometers) away on July 19. Meanwhile, MESSENGER, the first probe to orbit Mercury, took a black-and-white image from a distance of 61 million miles (98 million kilometers) as part of a …

The hotly contested question has been answered: Voyager 1 is humanity’s first object to enter interstellar space! The historic announcement came from NASA after a year of review into 2012 and 2013 data points from the intrepid probe. Officially, Voyager 1 entered interstellar space on 25 August 2012. The debate For over a year, scientists …

Most of what scientists know of Jupiter’s moon Europa they have gleaned from a dozen or so close flybys from NASA’s Voyager 2 spacecraft in 1979 and NASA’s Galileo spacecraft in the mid-to-late 1990s. Even in these fleeting, paparazzi-like encounters, scientists have seen a fractured, ice-covered world with tantalizing signs of a liquid water ocean …

The true identity of centaurs, the small celestial bodies orbiting the sun between Jupiter and Neptune, is one of the enduring mysteries of astrophysics. Are they asteroids or comets? A new study of observations from NASA’s Wide-field Infrared Survey Explorer (WISE) finds most centaurs are comets. Until now, astronomers were not certain whether centaurs are …

A monster storm that erupted on Saturn in late 2010 – as large as any storm ever observed on the ringed planet – has already impressed researchers with its intensity and long-lived turbulence. A new paper in the journal Icarus reveals another facet of the storm’s explosive power: its ability to churn up water ice from …