Planetary Science
- Planetary Science
New moons for Saturn
Astronomers reported the discovery of four new moons orbiting Saturn.
- Planetary Science
Threat to Titan mission deepens
If a communications problem between the Huygens probe and its mother craft is not corrected, as much as two-thirds of the data gathered by the probe during its 2004 descent through Titan's atmosphere could be lost.
- Planetary Science
Cassini spies storms on Saturn
Closing in on Saturn after a 7-year journey, the Cassini spacecraft has discovered two storms merging on the ringed planet, only the second times that scientists have observed such a phenomenon.
- Planetary Science
Martian Methane: Carbon compound hints at life
The presence of methane in the Martian atmosphere spotlights the possibility that there might be primitive life on the Red Planet.
- Planetary Science
Signs of Water Flow: Oceans of data point to ancient Martian sea
A robotic rover on Mars has found strong evidence that some rocks near the Martian equator were laid down by a shallow, ancient ocean, indicating one of the most likely places to look for remains of life on the Red Planet.
- Planetary Science
Revisiting a forgotten planet
Engineers are readying a NASA spacecraft for a May 11 launch to Mercury, one of the least-explored planets in the solar system.
- Planetary Science
Radio link may hamper a Titan probe
A recently discovered communications problem could prevent the Huygens probe from relaying all of its precious data when it parachutes through the cloud-bedecked atmosphere of Saturn's largest moon, Titan, in 2004.
- Planetary Science
A New Flight Plan
President Bush recently unveiled an ambitious plan for a manned mission to Mars, using the moon as a testing area and stepping-stone, but for many planetary scientists the moon is a desirable destination in and of itself.
- Planetary Science
Red Planet Makes a Splash: Rover finds gush of evidence for past water
A robotic rover on Mars has gathered what scientists are calling the best evidence to date that liquid water once flowed on the Red Planet.
- Planetary Science
A view of Mars, European style
Although the Mars lander Beagle 2 is presumed dead, its mother craft, the European Space Agency's Mars Express, has transmitted its first data from a polar orbit about the Red Planet.
- Planetary Science
Red Planet Roundup: Opportunity knocks; Spirit revives
The NASA rover Opportunity bounced onto an equatorial Martian plain early on Jan. 25 and found an intriguing outcropping of rocks on the other side of the planet from where its ailing but recovering twin, Spirit, had recently stalled.
- Planetary Science
Spirit Gets Its Wheels Dirty: Mars rover begins scientific work
Spirit, the rover that landed on Mars on Jan. 3, last week began studying the rocks and soil at its landing site.
