Arrokoth's uniform color and composition suggests the planetoid formed from a small, homogeneous cloud of gas and dust in the primordial Solar Nebula, rather...
Star-forming region N44 in the Large Magellanic Cloud, about 170,000 light-years away: The oval bubble several hundred light-years across on the right, which was...
Photo: CC0 / Pixabay / aixclusive
Spermidine is said to slow down aging processes and supposedly protect against a number of diseases, including Covid-19. ...