note

China Accuses US of Unsafe Space Conduct After Near-Miss With Elon Musk’s Starlink

by

Beijing on Tuesday accused the United States of irresponsible and unsafe conduct in space over two “close encounters” between the Chinese space station and satellites operated by Elon Musk‘s SpaceX.   Tiangong, China’s new space station, had to maneuver to avoid colliding with one Starlink satellite in July and with another in October, according to … Read more

How changing levels of iron shaped the evolution of life on Earth — and why alien hunters should take note

by

This article was originally published at The Conversation. The publication contributed the article to Space.com’s Expert Voices: Op-Ed & Insights. Hal Drakesmith, Professor of Iron Biology, University of Oxford Jon Wade, Associate Professor of Planetary Materials, University of Oxford Our red blood is full of iron. We need iron for growth and for immunity. It is even added … Read more