
Ascent Trajectories and the Gravity Turn
Almost all space launch vehicles liftoff from the ground in the vertical direction and continue to orbit along an ascent trajectory that is usually optimized for the conditions in order to maximize ... more
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Iridium Certus delivers latest Broadband developer kits to manufacturers
Iridium Communications has announced the availability of its next-generation broadband technology to manufacturing partners, to assist in their development of the first Iridium Certus broadband term ... more
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Cosmic krypton timestamps reveal Australia landscape evolution and resources
Fire on Ice: The Arctic's Changing Fire Regime
Warming trend to intensify crop droughts across Europe and beyond
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Obama abandons pledge to pull troops from Afghanistan
President Barack Obama on Thursday announced thousands of US troops will remain in Afghanistan past 2016, retreating from a major campaign pledge as he admitted Afghan forces are not ready to stand alone. ... more
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Pakistan deploys 10,000 troops to prevent sectarian violence
Pakistan is deploying some 10,000 troops and 6,000 paramilitary members to prevent sectarian violence during the holy month of Moharram, the interior minister said Wednesday. ... more
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UN urges Iraq's feuding Kurds to respect democracy
Political parties in Iraq's Kurdish region, whose president's mandate expired in August, should respect democratic principles, the top UN envoy said Wednesday. ... more
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Iraqi forces in major push against IS jihadists
Iraqi forces battled the Islamic State jihadist group on separate fronts Thursday, ramping up operations to retake Baiji and Ramadi, two of the conflict's worst flashpoints. ... more
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Iraq says assault to retake IS-held Ramadi looming
Iraqi forces have made significant advances around Ramadi, and an operation is looming to retake the city, captured by the Islamic State jihadist group in May, officers said Wednesday. ... more
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