Health workers get ready to spray insecticide in advance of the 2016 Summer Olympics, in Rio de Janeiro, Brazil, to combat the mosquitoes that transmit the Zika virus in this Jan. 26, 2016 photo.
(AP Photo/Leo Correa, File)
Recent discoveries of ancient viruses are helping scientists understand their origins.
Bacteria are single-celled organisms but you'd be fooled to think they weren't also hugely complex.
NOAA Photo Library/Flickr
New research suggests the "primordial soup" theory can't explain how living cells evolved to harness energy.
Hydrogen peroxide – widely used in hair bleach – may also hold the key to life on early Earth.
Brandon Milner Photography/Flickr
A chemical found in hair bleach may help answer questions about the origins of life and explain why new life does not emerge on modern Earth. Hydrogen peroxide may have helped transform RNA (ribonucleic…