involves tightly coordinated movements of a cell's DNA. This page describes the major phases of mitosis, the most common form of cell division.

For decades, scientists believed that lead-208, a "doubly magic" and highly stable atomic nucleus, was perfectly spherical.

For the first time, scientists have acquired direct evidence of rare, pulsing pear-shaped structures within atomic nuclei of ...

Two oxygen atoms covalently bond to form oxygen gas. There are twice as many hydrogen atoms as oxygen atoms so more hydrogen gas is formed. Oxygen atoms are close together. The electrons from each ...