AFRL Selects 10 Universities for Prestigious Satellite Program

Graphic representation of Arachne, the first solar power beaming experiment for the Space Solar Power Incremental Demonstrations & Research Project. (Credit: AFRL)

KIRTLAND AIR FORCE BASE, N.M. (AFRL PR) – The Air Force Research Laboratory’s University Nanosatellite Program (UNP) has selected 10 universities to participate in the upcoming 2-year partnership to design, fabricate and test small satellites.

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Mechanism Underlying Size-Sorting of Rubble on Asteroid Itokawa Revealed

Asteroid Itokawa (Credit: JAXA)

By Greta Keenan
Okinawa Institute of Science and Technology

In 2005, the Hayabusa spacecraft developed by the Japan Aerospace Exploration Agency (JAXA) landed on Itokawa, a small near-Earth asteroid named after the famous Japanese rocket scientist Hideo Itokawa. The aim of the unmanned mission was to study the asteroid and collect a sample of material to be returned to Earth for analysis. Contrary to scientific predictions that small asteroids are barren nuggets of rock, photographs taken by the Hayabusa spacecraft revealed that the surface of Itokawa is strewn with different sized particles. Even more puzzling was the lateral separation of small and large particles – with large boulders occupying the highlands and small pebbles occupying the lowlands.

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