ScienceDaily: Astronomy News |
- Sharpest map of Mars surface properties
- Asteroid Vesta to reshape theories of planet formation
- NOAA's GOES-R satellite Magnetometer ready for spacecraft integration
- NASA's Van Allen Probes show how to accelerate electrons
| Sharpest map of Mars surface properties Posted: 16 Jul 2014 11:13 AM PDT A heat-sensing camera has provided data to create the most detailed global map yet made of Martian surface properties. Surface properties tell geologists about the physical nature of a planet or moon's surface. Is a particular area coated with dust, and if so, how thick is it likely to be? Where are the outcrops of bedrock? How loose are the sediments that fill this crater or that valley? A map of surface properties lets scientists begin to answer questions such as these. |
| Asteroid Vesta to reshape theories of planet formation Posted: 16 Jul 2014 10:16 AM PDT Researchers have a better understanding of the asteroid Vesta and its internal structure, thanks to numerical simulations and data from the space mission Dawn. Their findings question contemporary models of rocky planet formation, including that of Earth. |
| NOAA's GOES-R satellite Magnetometer ready for spacecraft integration Posted: 15 Jul 2014 06:43 PM PDT The Magnetometer instrument that will fly on NOAA's GOES-R satellite when it is launched in early 2016 has completed the development and testing phase and is ready to be integrated with the spacecraft. |
| NASA's Van Allen Probes show how to accelerate electrons Posted: 15 Jul 2014 06:43 PM PDT One of the great, unanswered questions for space weather scientists is just what creates two gigantic donuts of radiation surrounding Earth, called the Van Allen radiation belts. Recent data from the Van Allen Probes -- two nearly identical spacecraft that launched in 2012 -- address this question. |
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