Researchers have discovered that chemical reactions in underwater hydrothermal vents could have produced the necessary ...

Part of Combined Science Structures, trends, chemical reactions, quantitative chemistry and analysis 25% of chlorine atoms are 37 Cl and 75% are 35 Cl. The weighted mean mass of chlorine is 35.5. The ...

Known as “islands of inversion,” these odd regions are found among a sea of normal nuclei. Now, a new island may have been ...

But only in the last 70 years have we known for certain they were there. In 1956, physicists Clyde Cowan and Frederick Reines ...

For years, the James Webb Space Telescope has been spotting enormous black holes in the early universe that defy all ...

IN 1937, Perrier and Segrè showed that radioactive isotopes of element 43 could be formed by neutron or deuteron bombardment of molybdenum 1. Several chemical properties of element 43 were established ...

For years, physicists have mapped the stability of atomic nuclei with remarkable confidence. The periodic table, with its ...

Primordial black holes could rewrite our understanding of dark matter and the early universe. A record-breaking detection at ...

The Ring Nebula, also known as Messier 57, sits about 2,000 light-years from Earth. It is a planetary nebula—a misleading ...

The near side of the Moon, which faces the Earth, is thinner, while the mysterious far side is crammed with thick layers of ...

Researchers have reported new experimental results addressing the origin of rare proton-rich isotopes heavier than iron, ...

In October 2001 a Los Angeles County grand jury indicted Saldivar on six counts of murder and one count of attempted murder.