Articles

Franck Marchis

Scientists have found seven, Earth-size planets orbiting a star just 40 light years away. Three lie in the habitable zone and could have water on their surfaces.

Ted Stryk

Amateur image processor Ted Stryk revisited Voyager 1 data of Enceladus and came across a surprise.

Jason Davis

Today, NASA announced progress on a spacecraft that would assess whether Jupiter's Moon Europa is habitable, and earlier this month, an agency-sponsored science team released a report on a separate lander mission that would directly search for signs of life.

Phil Stooke

Over nearly 60 years of spacecraft exploration of the Moon, lots of spacecraft have crashed on the lunar surface—some accidental, some intentional. Phil Stooke hunts for their impact sites.

Larry Crumpler

Opportunity has successfully clawed its way to within a few meters of the crater rim after spending the last few months climbing and the last two years inside the crater.

Bryan J. Rodriguez-Colon

Earth possesses amazing biological diversity. Every corner of this planet—no matter how bizarre the place—is inhabited by microorganisms. This includes impact craters.

Larry Crumpler

Several sols ago, Opportunity made it up and past the steepest section of its climb out of Endeavour crater.

A.J.S. Rayl

2017 got off to a start that was unprecedented in every good way: Opportunity completed her 13th Earth year of surface operations and drove the first overland expedition of the Red Planet into its 14th year.

Emily Lakdawalla

Since my last update, the Curiosity mission has developed a better understanding of the problem that prevented them from drilling at Precipice, but its intermittent nature has slowed the development of a workable solution that will allow them to use the drill again. In the meantime, the rover has driven onward, making good use of its other instruments.

Van Kane

For the third time in less than a decade, scientists have proposed a multiple-flyby mission to explore the habitability of Saturn’s ocean moons Titan and Enceladus.

Marc Rayman

Dawn has moved into its sixth orbital phase, with a new sun angle that provides an opportunity to gain a new perspective on the asteroid Ceres.

Kevin Gill

Amateur space image processor Kevin Gill shares some of his stunning 3D images of Mars, created from real spacecraft data.

Emily Lakdawalla

Behold: Daphnis, the tiny, 8-kilometer moon that orbits within a ring gap, gently tugging on the edges of the gap to create delicate scallops.

Van Kane

Last week, NASA selected its thirteenth and fourteenth missions in its low cost Discovery program.

Judy Schmidt

Artist and astrophotographer Judy Schmidt brings us a view from within the rings of Saturn.

Marc Rayman

Dawn is concluding a remarkable year of exploring dwarf planet Ceres. Chief Engineer and Mission Manager Marc Rayman brings us his latest update.

A.J.S. Rayl

As 2016 came to an end and 2017 rang in, Opportunity was working the first leg of the ascent up the rugged western rim of Endeavour Crater on her way to an ancient gully, the next scientific tour de force down the road, and the mission was closing in on its 13th anniversary of surface operations coming up in the New Year.

Andrew Jones

China released a new white paper on its policy and activities in space, outlining ambitious deep space exploration, human spaceflight and space science projects as major priorities for the years up to 2020 and beyond.

Heather Hunter

After a series of maneuvers in-orbit, GOES-R—now known as GOES-16—has reached its designated location in space. What happens next?

Steven Hauck

2016 marks the 25th anniversary of the creation of what has become one of the primary venues for the publication of research in planetary science: the Journal of Geophysical Research: Planets. This occasion is a good opportunity to look back at what we have learned in this era of expanded exploration and to try to take a peek at the future.