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Life on Earth

A group of Scientists led by Elizabeth Bell found evidence that life likely existed on Earth at least 4.1 billion years ago. That was 300 million years earlier than previous research suggested. The discovery indicates that life may have begun shortly after the planet formed 4.54 billion years ago.

Discoverer of the atom nucleus dies

New Zealand physicist Ernest Rutherford discovered the nucleus of the atom and changed one element to another in the lab. He also spotted the difference between alpha, beta and gamma radiation and proved that alpha radiation is helium nuclei. Rutherford discovered the proton and the concept of half-life as well.

Star scientist is born

Indian astrophysicist Subrahmanyan Chandrasekhar contributed to the various parts of physics but he is most famous for his study of the star development. The maximum mass of a stable white dwarf star is named after him – The Chandrasekhar limit. Heavier stars become black holes. Subrahmanyan Chandrasekhar's uncle was another famous physicist, C. V. Raman.

Scientific revolution begins

German physicist Max Planck discovered his law of blackbody radiation. A blackbody is an idealized physical body which does not reflect any radiation. It only emits its own radiation. Planck's law describes a frequency of this radiation at a given temperature. He had to assume that radiation is emitted in small chunks, called quanta. This started the quantum revolution in physics.

Anniversaries of famous