Image: Crescent Jupiter with the Great Red Spot

This image of a crescent Jupiter and the iconic Great Red Spot was created by a citizen scientist (Roman Tkachenko) using data from Juno's JunoCam instrument. You can also see a series of storms shaped like white ovals, known ...

Chemists report E-selective macrocyclic ring-closing metathesis

Using ring-closing metathesis to exploit the properties of carbon-carbon double bonds, researchers from Boston College and the Massachusetts Institute of Technology have developed a new catalytic approach for the preparation ...

Image: Juno captures Jupiter 'pearl'

This image, taken by the JunoCam imager on NASA's Juno spacecraft, highlights the seventh of eight features forming a 'string of pearls on Jupiter—massive counterclockwise rotating storms that appear as white ovals in the ...

Juno spacecraft in safe mode for latest Jupiter flyby

NASA's Juno spacecraft entered safe mode Tuesday, Oct. 18 at about 10:47 p.m. PDT (Oct. 19 at 1:47 a.m. EDT). Early indications are a software performance monitor induced a reboot of the spacecraft's onboard computer. The ...

A timeline of comet probe's 12-year space odyssey

The European Space Agency's comet-chasing probe Rosetta is performing a final maneuver Friday that will end its 12-year mission with a crash-landing on the surface of comet 67P/Churyumov-Gerasimenko.

Video: Rosetta's journey around Comet 67P/Churyumov–Gerasimenko

The animation begins on 31 July 2014, during Rosetta's final approach to the comet after its ten-year journey through space. The spacecraft arrived at a distance of 100 km on 6 August whereupon it gradually approached the ...

Comet Pan-STARRS' reflective properties provide size estimation

Astronomers at the Planetary Science Institute made observations of Comet Pan-STARRS (P/2016 BA14) using the NASA Infrared Telescope Facility (IRTF) on Mauna Kea, Hawai'i that show that it reflects less than 3 percent of ...

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