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January 01, 2018

Space-Based Communications Will Reach New Heights With Airbus In 2018

Fully Electric Satellites Are Scheduled For Launch This Year

Airbus will mark new milestones next year with launches of innovative communications spacecraft that range from large, high-power relay platforms incorporating electric propulsion systems to compact, mass-produced units for a 900-satellite constellation providing affordable global internet access.

Combined Computer Models And Detailed Observations To Find The Answer

Speeding through the atmosphere high above Jupiter’s equator is an east–west jet stream that reverses course on a schedule almost as predictable as a Tokyo train’s. Now, a NASA-led team has identified which type of wave forces this jet to change direction.

Observatory Has Been Idle Since Hurricane Maria Struck Puerto Rico

After several months of downtime since Hurricane Maria struck the island of Puerto Rico, the Arecibo Observatory Planetary Radar has returned to normal operation, providing the highest-resolution images to date of near-Earth asteroid 3200 Phaethon during its December 2017 close approach to Earth. The radar images, which are subtle at the available resolution, reveal the asteroid is spheroidal (roughly ball-shaped) and has a large concavity, or depression, at least several hundred meters in extent near its equator.