Just my memorandum about space, astronomy, hearth and lifescience
What goes up, nearly always comes back down. Roughly 100 satellites and rocket bodies reentered Earth’s atmosphere every year in the last decade. It might sound scary, but atmospheric reentries are nothing to be worried about – in fact they are a fundamental tool in minimising the creation of space debris and ensuring a sustainable future in space.
瞳孔径の時間的な複雑性と左右瞳孔の非対称性の解析により、覚醒や注意機能を担う脳活動をリアルタイムに推定する新しい技術を開発しました。多くの精神疾患では覚醒や注意機能の異常が見られますが、本手法を利用して安全にこれらの働きを調べることができます。
www.ncnp.go.jp/topics/2021/20210312p.html
The demonstrations, everything from reliable power systems to possibly even in-space construction systems and landing pads, will expand NASA’s lunar technology toolbox. Helping inform this effort, the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland, will continue to assist NASA in assessing lunar surface technology capabilities and identifying development gaps. In March 2021, NASA awarded APL a task order on an existing contract for up to $30 million over the next three years.
