ET the­ory on ori­gin of life

The Sunday Times - - NEWS -

LIFE be­gan when me­te­orites bom­barded “warm lit­tle ponds” on Earth’s sur­face, sci­en­tists say.

Ex­perts once thought the first crea­tures orig­i­nated from vol­canic ocean vents four bil­lion years ago.

But re­search by Canada’s McMaster Univer­sity and Ger­many’s Max Planck In­sti­tute backs Charles Darwin’s 1871 the­ory that life be­gan ear­lier in “warm lit­tle ponds with am­mo­nia and phos­phoric salts, light, heat, elec­tric­ity present”. Am­mo­nia and hy­dro­gen cyanide would cre­ate RNA, a build­ing block of life.

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