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Feature: Noctilucent Clouds, Comets, and Meteor Showers

During summer months, observers at high northern latitudes may be treated to a rare atmospheric phenomenon. Just after the sun has dropped below the horizon and the sky begins to darken, look west and you may be able to see Noctilucent or "Night Shining" Clouds. Also called PMCs (Polar Mesospheric Clouds), these apparitions are a bit of a puzzle for scientists because it is not entirely clear how they form. Read More...
Noctilucent Clouds, Comets, and Meteor Showers
Science Features Best of NASA Science
Comet ISON: What's in a Name?
Comet ISON: What's in a Name?
Credit for comet ISON's name goes to its discovers: Vitali Nevski and Artyom Novinchonok.Read More...
Best of NASA Science 2010
Best of NASA Science 2010
Take a photographic journey through another year of stunning images and wondrous science.Read More...
Noctilucent Clouds Get an Early Start
Noctilucent Clouds Get an Early Start
Every summer, something strange and wonderful happens high above the north pole. Ice crystals begin to cling to the smoky remains of meteors, forming electric-blue clouds with tendrils that ripple hypnotically against the sunset sky.Read More...
Solar System Exploration @ 50: What the Experts Picked
Research... at a Glance
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.Read More...
Astrobiology NASA Science Highlights
Searching for Life Where the Sun Don't Shine, Part Six
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.Read More...
Rotational Motion of Ceres
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.Read More...
Impacts Could be Boon for Subterranean Life
Research... at a Glance
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 impactRead More...
Atmospheric Modeling of Martian Methane Plumes: The Debate Continues
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.Read More...
Astronomy Features Technology Features
Citizen Science, Old-School Style: The True Tale of Operation Moonwatch
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.Read More...
9th International Planetary Probe Workshop Repository
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.Read More...
Bright Explosion on the Moon
Bright Explosion on the Moon
NASA researchers who monitor the Moon for meteoroid impacts have detected an explosion ten times brighter than anything they've seen before.Read More...
How to Hunt a Space Rock
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.Read More...
Power Propulsion
JPL-Developed Clean Energy Technology Moves Forward
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 applicRead More...
Resilient Rockets
Resilient Rockets
Spacecraft and automobiles could benefit from a new NASA technology that protects the insides of scorching-hot engines.Read More...
Radioisotope Power Systems:  Power to Explore
Research... at a Glance
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.Read More...
Technology Assessment Reports Lectures & Discussions
Guidance, Navigation, and Control Technology Assessment for Future Planetary Science Missions Part III, Surface Guidance, Navigation, and Control
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.Read More...
Radar Imaging of Near Earth Asteroids
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.Read More...
Guidance, Navigation, and Control Technology Assessment for Future Planetary Science Missions Part II. Onboard Guidance, Navigation, and Control (GN&C)
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.Read More...
Regenerative Fuel Cells, Energy Storage Systems for Space Applications
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.Read More...
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Last Updated: 18 Jun 2013