New Horizons Fine-Tunes Its Course for MU69

A little goes a long way—especially when you’re traveling 51,000 mph! On Feb. 1, 2017 NASA’s New Horizons spacecraft performed a 44-second thruster burn that adjusted its course by just under 1 mph toward its next target, the Kuiper Belt object 2014 MU69. “One mile per hour may not sound like much,” said mission Principal…

This is Where MESSENGER Impacted Mercury

On April 30, 2015, after more than ten years in space – four of those in orbit –  MESSENGER‘s mission and operational life came to its conclusive (and expected) end when it impacted the surface of Mercury. While the spacecraft’s approximate impact location was predicted by mission engineers (it was out of sight of Earth at the time)…

Here’s Your Chance to Name a Crater on Mercury!

On March 18, 2011, MESSENGER became the first human-made spacecraft to enter orbit around Mercury. Now almost four years, eight billion miles, and over 260,000 images later, MESSENGER is nearing the end of its operational life. To commemorate the many achievements of the mission, scientists from NASA and the MESSENGER teams at the Johns Hopkins…

Fastest, Farthest, First: New Horizons Closing in on Pluto

It’s a journey spanning 85 years and billions of miles: humanity’s first-ever encounter with the dwarf planet system of Pluto and Charon, located in the frozen far reaches of our Solar System where our entire planet is a barely-visible pale blue dot — just a “mote of dust suspended in a sunbeam.” Launched in 2006,…

New Horizons’ First Look at Pluto’s Big Moon

The two bright clusters of pixels in the image above might not seem like much of a big deal, but they are… those two blocky blobs are the dwarf planet Pluto and its largest moon, Charon, as seen by the rapidly-approaching New Horizons spacecraft, destined for its ultimate close encounter in July 2015! This represents…

Dawn Makes an Elemental Discovery on Vesta

In what could be called a “eureka” moment for Dawn researchers and planetary scientists alike, hydrogen has been found on the surface of Vesta, a 550-km (340-mile) -wide protoplanet and the second most massive world in our Solar System’s main asteroid belt. The elemental discovery was made with the Gamma Ray and Neutron Detector (GRaND)…