Tuesday, March 30, 2021

Long spaceflights and endurance swimming can 'shrink the heart' - Yahoo News

Long spaceflights and endurance swimming can 'shrink the heart'  Yahoo NewsView Full Coverage on Google News
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V404 Cygni: Huge rings around a black hole - Phys.org

* V404 Cygni: Huge rings around a black hole  Phys.org * Huge Rings Around a Black Hole  NASA * Huge ring around a black hole  Floridanews...