Planetary Science
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Planetary Science
Springtime on Neptune: Images hint at seasonal changes on distant planet
Belying its location in the deep freeze of the outer solar system, Neptune may undergo a change of seasons.
By Ron Cowen -
Planetary Science
Mars Photo of the Day
With a stock of more than 120,000 images, the camera team for NASA’s Mars Global Surveyor mission has started daily postings of pictures to showcase the diversity of Martian landscapes. Click on the photo to obtain additional information about what the image reveals. Go to: http://www.msss.com/
By Science News -
Planetary Science
Roving on the Red Planet
NASA last month selected the landing sites for rovers scheduled to begin exploring the Martian surface next January.
By Ron Cowen -
Planetary Science
Spacecraft reveal Mars’ molten heart
Tracking the precise motion of a spacecraft orbiting Mars, planetary scientists have deduced that the core of the Red Planet is at least partially liquid.
By Ron Cowen -
Planetary Science
Red Planet
The imaging team of NASA’s Mars Global Surveyor spacecraft has doubled the number of Mars pictures available to the public with the release of a new archive of photos. The archive contains all the pictures that were taken by Mars Global Surveyor from September 1999 through February 2000 and includes the images that were taken […]
By Science News -
Planetary Science
Planets in Autumn
On Sept. 22, Earth joined two other worlds in the solar system where it is northern autumn. At this NASA Web site, learn more about Earth’s September equinox and ponder the bizarre seasons of other planets. Go to: http://science.nasa.gov/headlines/y2000/ast22sep_1.htm?list110076
By Science News -
Planetary Science
Martian Gullies: Carved by melting snow?
Melting snow may have sculpted the recently formed gullies found at midlatitudes on Mars.
By Ron Cowen -
Planetary Science
Space Class
If you’re looking for classroom materials tied to recent NASA news reports, such as evidence suggesting the presence of water on Mars, this Web site pulls together a variety of articles, images, and Web links related to any given report. The archive includes topics such as solar storms, meteors, planetary alignments, eclipses, and many others. […]
By Science News -
Planetary Science
New moons for Neptune?
Astronomers say they have discovered three additional moons circling Neptune.
By Ron Cowen -
Planetary Science
Martian leaks: Hints of present-day water
In some of the coldest regions on Mars, water appears to have recently gushed from just beneath the surface, running down crater walls and steep valleys.
By Ron Cowen -
Planetary Science
Mars reveals more frozen water
Planetary scientists have discovered ice near the edge of Mars' south polar cap.
By Ron Cowen