This animation shows the first four year’s progress of NASA’s Near-Earth Object Wide-field Survey Explorer (NEOWISE) mission following the repurposing of the WISE satellite in December, 2013. Green dots represent near-Earth objects. Gray dots represent all other asteroids which are mainly in the main asteroid belt between Mars and Jupiter. Yellow squares represent comets.

Image Credit: NASA

Chasing a Comet

This animation details the European Space Agency’s Rosetta‘s journey from launch in March, 2004, to rendezvous with comet 67P/Churyumov-Gerasimenko in August 2014, including three flybys of Earth and one of Mars. By now, the spacecraft is about 9 million km from comet 67P/CG. By early May, Rosetta will be 2 million km from the comet, and, at the end of May, it will execute a major rendezvous manoeuvre to line up for orbit insertion at the start of August.

Video Credit: ESA

The comet and planets are not to scale.