Space Exploration

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NASA’s Curiosity rover has found spectral evidence of an iron-oxide mineral called hematite (Fe2O3) on a rock near Mount Sharp in Gale Crater, Mars. This false-color image demonstrates how use of special filters available on Curiosity’s Mastcam camera can reveal the presence of certain minerals in target rocks. It is …

NASA’s Juno orbiter captured a series of beautiful images during its ninth flyby of Jupiter on October 24, 2017. This image of Jupiter’s southern hemisphere was taken by NASA’s Juno spacecraft on October 24 at 2:11 p.m. EDT (11:11 a.m. PDT). At the time the image was taken, Juno was …

Supernova are some of the oldest recorded astronomical phenomena in human history. In 185 AD, Chinese astronomers recorded the appearance of a star that appeared suddenly in the night sky, did not move like a comet, and was visible for eight months before fading again. Over 2,000 years the Chinese …

A new modeling study led by the University of Nantes is the first to explain several key characteristics of Saturn’s moon Enceladus observed by NASA’s Cassini spacecraft: a global ocean underneath the moon’s ice shell, internal heating, thinner ice at the south pole, and hydrothermal activity. This graphic illustrates how …

NASA’s Juno spacecraft successfully made its ninth (eighth science) flyby over Jupiter’s mysterious cloud tops on October 24, 2017. This illustration depicts Juno soaring over the south pole of Jupiter. Image credit: NASA / JPL-Caltech. “Data returned October 31 indicate that Juno completed its eighth science flyby over Jupiter’s cloud …

According to NASA, the agency’s next Mars rover will have more cameras than any rover before it: a grand total of 23, to create sweeping panoramas, reveal obstacles, study the atmosphere, and assist science instruments. There will even be a camera inside the rover’s body, which will study samples as …

The Curiosity rover has been an unqualified success since the moment it touched down on Mars aboard a magnificent rocket sled contraption. It’s traveled farther on the red planet than any other machine while delivering huge amounts of data to researchers here on Earth. Curiosity is suffering from camera envy …

Astronomers are always tracking asteroids and comets in space near Earth, and some of them are from unfathomably far away in the outer solar system. However, scientists may have spotted the first such object that’s from someplace even more distant–another solar system. The mysterious object known only as A/2017 U1 …

Analysis of data from ESA’s Rosetta mission continues to yield insights into the nature of cometary ice and organics. Artist’s impression of a comet. Image credit: DLR / CC-BY 3.0. Launched in March 2004 and following a ten-year journey across the Solar System, ESA’s Rosetta probe made history in 2014 …