SUNSET: 
NASA's InSight Lander Finds Tropical Mars Is Dry
Evidence for water ice exists at the poles of Mars and even at mid-latitudes, but new evidence shows equatorial Mars is dry. The find has implications for past habitability and future human missions to Mars.
Astronomy in Space with David Dickinson
NASA's Insight Lander Detects Monster Marsquake
NASA’s Mars Insight lander witnessed the largest quake detected on another world at just the right time — as the lander begins to run low on power.
NASA's Insight Reveals First Look Inside Mars
The Insight mission science team has used about 10 deep marsquakes to take stock of the planet's anatomy.
Astronomy in Space with David Dickinson
NASA Extends Juno, InSight Missions
NASA has granted two key planetary missions extensions, so InSight and Juno will continue to return data from Mars and Jupiter, respectively, for years to come.
Mars "Mole" Is in the Ground (Again)
After months of careful work, NASA's Insight mission has its mole burrowed in the Martian soil.
NASA’s Insight Detects Many Marsquakes on the Red Planet
Persistent tremors on Mars suggest the planet’s interior is cooling and hint that there might be a pocket of magma beneath the surface.
Work to Save NASA's "Mole" on Mars Continues
NASA engineers hope to use the scoop at the end of the lander's robotic arm to get the Insight lander's heat probe burrowing once again.
A Strategy to Get the Mars Insight Lander Back in the Drilling Business
Insight's robotic arm has uncovered the lander's "mole," as NASA and German aerospace engineers work to get it drilling once again.
What the First Marsquake Means for NASA's Insight
After two months, InSight’s seismometer has picked up the first rumblings in Martian soil. Turns out marsquakes may be less frequent than thought.
Mars Insight's "Mole" Hits a Snag
Drilling operations for NASA's Mars Insight Lander have been put on hold as the "mole" has hit unexpected obstacles.
Insight Lander Touches Down on Mars
After a safe landing, NASA's first dedicated geophysical mission to Mars will spend the next two years studying the deep interior of the Red Planet.
Looking Ahead: Space Exploration in 2017
An exciting year lies ahead for spaceflight involving astronomy and planetary science — by NASA and by other spacefaring nations.