Planets Aligning in the Sunset Sky
The sunset of May 26th will be extra special. On that date, Venus, Jupiter and Mercury will gather in the fading twilight to form a bright triangle only three degrees wide.

Best of NASA Science 2010
Take a photographic journey through another year of stunning images and wondrous science.

See Saturn at its Best and Brightest
At the end of April, Saturn will put on a breathtaking display.

Solar System Exploration @ 50: What the Experts Picked
Here is what the experts had to say about their favorite moments last 50 years of planetary robotic exploration.

Searching for Life Where the Sun Don't Shine, Part Six
This is the final part of a series telling the story of humankind's efforts to understand the origins of life and potential for life on other worlds by studying organisms that survive deep below Earth's oceans around hydrothermal vents.

Rotational Motion of Ceres
Ceres, the first asteroid to be discovered, is by far the largest and most massive body in the main asteroid belt. NASA's Dawn Mission will be the first to reach Ceres and one of its main goals is to understand its thermal evolution and current state.

Impacts Could be Boon for Subterranean Life
A drilling project into the Chesapeake Bay impact structure has found evidence that the subsurface may become more habitable after a large impact

Atmospheric Modeling of Martian Methane Plumes: The Debate Continues
From recent observations, it has been suggested that there is evidence for the periodic (seasonal) release of methane occur from discrete surface locations on Mars, although the exact location and mechanism of release is still unknown.

Citizen Science, Old-School Style: The True Tale of Operation Moonwatch
Amateur astronomers have done more than just watch the skies, they've been a national security asset.

9th International Planetary Probe Workshop Repository
We are happy to announce that the repository website for IPPW-9 is online. You will have access to most of the presentations, papers and also to a podcast of the Short Course.

Prime Time for PANSTARRS
This week is prime time for observing this comet. (Next opportunity, the year 108,013 +/- a few hundred or thousand years.)

How to Hunt a Space Rock
Recently, meteorite hunters tracked down cosmic debris in order to test a "lab on a chip" destined for future spacecraft.

JPL-Developed Clean Energy Technology Moves Forward
A team of scientists at NASA's Jet Propulsion Laboratory in partnership with the University of Southern California, developed a Direct Methanol Fuel Cell technology for future Department of Defense and commercial applic

Resilient Rockets
Spacecraft and automobiles could benefit from a new NASA technology that protects the insides of scorching-hot engines.

Radioisotope Power Systems: Power to Explore
For more than four decades, Radioisotope Power Systems (RPS) have played a critical role in the exploration of space, enabling missions of scientific discovery to destinations across the solar system.

Guidance, Navigation, and Control Technology Assessment for Future Planetary Science Missions Part III, Surface Guidance, Navigation, and Control
This document-Part III, Surface Guidance, Navigation, and Control-is the third, and last, in a series of technology assessments evaluating the capabilities and technologies needed for future missions pursuing SMD PSD's scientific goals.

Radar Imaging of Near Earth Asteroids
Radar is a very powerful astronomical technique for studying the physical properties and refining the orbits of near-Earth asteroids.

Guidance, Navigation, and Control Technology Assessment for Future Planetary Science Missions Part II. Onboard Guidance, Navigation, and Control (GN&C)
This document-Part II, Onboard Guidance, Navigation, and Control-is the second in a series of three technology assessments evaluating the capabilities and technologies needed for future missions pursuing SMD PSD's scientific goals.

Regenerative Fuel Cells, Energy Storage Systems for Space Applications
This talk provides an introduction to fuel cells and regenerative fuel cell systems. It also highlights the features of this technology for enabling future NASA missions to the moon, near-Earth asteroids and Mars.