• "The RAX will measure the energy flow in the ionosphere, the highest part of Earth's atmosphere where solar radiation turns regular atoms into charged particles. Disturbances in the ionosphere can affect earth-to-space communications such as GPS signals, digital satellite television and voice and data transmission systems including Iridium and Globalstar.

    "This project will help us better understand space weather processes, how the Earth and Sun interact, and how this weather produces noise in space communication signals—noise that translates to lower quality telecommunications capabilities and error in GPS signals," Cutler said.

    The RAX satellite will act as a receiver that will pick up signals from a ground radar transmitter. These radar pulses will reflect off disturbances, or space weather phenomena, in the ionosphere."

  • Profile of Clyde Space, involved in commercial CubeSat work.

  • Naval Academy project. "The DOD interest in this RAFT project is its requirement to TRACK all space objects and the difficulty it will have in tracking these 4" cubesat clusters due to their large numbers and small size which is below the NSSS routine tracking ability. RAFT was approved by the DOD Space Experiments Review Board in the fall of 2002. Since DOD cannot pay for our project to fly on the typical Cubesat Russian (low cost) launcher, DOD developed their own 5" cubesat launcher.

    RAFT OBJECTIVES: The RAFT Mission is to provide a cubesat in the cubesat cluster which has an on-board transponder capable of identifying itself via the NSS satellite Radar Tracking system to help locate the Cubesats. Without this transponder, the Cubesats are too small to be detected by normal non-queued tracking systems, and so there is no easy way to find these individual cubesats once they have begun to spread from the original launch tracking elements."

    (tags: cubesat space)

  • "Researchers in fields ranging from biochemistry to cosmology are recruiting armies of volunteers to help solve some of science’s thorniest problems."

  • "It is the first spacecraft dedicated to studying atmospheric carbon dioxide, the most significant human-produced greenhouse gas and the principal human-produced driver of climate change. This experimental NASA Earth System Science Pathfinder Program mission will measure atmospheric carbon dioxide from space, mapping the globe once every 16 days for at least two years. It will do so with the accuracy, resolution and coverage needed to provide the first complete picture of the regional-scale geographic distribution and seasonal variations of both human and natural sources of carbon dioxide emissions and their sinks-the reservoirs that pull carbon dioxide out of the atmosphere and store it. Mission data will be used by the atmospheric and carbon cycle science communities to improve global carbon cycle models, reduce uncertainties in forecasts of how much carbon dioxide is in the atmosphere, and make more accurate predictions of global climate change." (Crashed in 2009)

  • You’ve definitely heard of the… 1 kg satellites called Cubesats, so named due to their physical dimensions being that of a 10 cm cube. They are extremely popular as an educational tool at universities, but is it truly feasible to create a functioning satellite within so small a package? Additionally, do Cubesats have any practical use, or are they merely just a toy?

    (tags: cubesat space)

  • "The controversial idea that earthquakes can be predicted by monitoring tiny fluctuations in Earth's magnetic field is to be tested by two new satellites. Although many seismologists see little merit in the idea, NASA and the US Air Force are together contributing about $1 million to provide data analysis and ground instrumentation to support experiments with the first satellite, the privately funded QuakeSat. Built by QuakeFinder of Palo Alto, California, the craft is now returning data from orbit after its 30 June launch. A second more expensive and ambitious satellite, funded by the CNES, France's national space agency, will follow next April."

  • A California company is planning to launch a satellite that will monitor, and hopefully one day predict, the state's shakiest feature – earthquakes. Dubbed QuakeSat by its Palo Alto-based creators, the microsatellite is tasked with watching the world for extremely low frequency (ELF) signals in the Earth's magnetic field — signals that could be a precursor to an oncoming temblor. But first, it has to show that the signals have value as an earthquake indicator in the first place. "We're obviously very optimistic, but we won't know until we try it," said QuakeFinder president and CEO Jeannie Seelbach in a telephone interview. QuakeFinder is developing the satellite as well as a ground-based earthquake detection network. "However, we think that this is something that has enough promise to be explored."

  • On 2006 solar flare that disrupted GPS.