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1,000+ results for "Satellite"

ZigBee in the Sky

Researchers successfully tested a ZigBee wireless sensor network in space, demonstrating the feasibility of using this technology for satellite communication. The experiment achieved remarkable inter-satellite communications over long distances, with theoretical estimates suggesting a range of up to 15.552 km.

SourceWorld Scientific·JournalUnmanned Systems·DateAug 25, 2014

Burn scars in Eastern Russia

Satellite images from NASA's MODIS instrument reveal the extent of wildfires in Eastern Russia, showcasing burn scars as reddish-brown splotches amidst green landscapes. The fires have ravaged remote areas of the Sakha Republic, with smoke and flames visible even in false-color images.

Polar bears from space

A study published in PLOS ONE uses satellite images to estimate polar bear population sizes, finding similar results to aerial and ground surveys. The technology holds promise for tracking Arctic wildlife, despite logistical challenges.

SourcePLOS·JournalPLOS ONE·DateJul 9, 2014

Nearby satellite galaxies don't fit standard model

Recent study finds satellite dwarf galaxies in the Milky Way and Andromeda do not behave as predicted by the standard model of galaxy formation. The galaxies are instead found in huge disks, moving in the same direction, like planets in our solar system. This mismatch raises concerns about the accuracy of the standard model of cosmology.

SourceCase Western Reserve University·JournalMonthly Notices of the Royal Astronomical Society·DateJun 11, 2014