Cockroaches are evolving to become invincible

They're hiding in your house, carrying germs, and now there's virtually no way to kill them.

Image source: Shutterstock
  • Not only are German cockroaches a major health concern, but they reproduce rapidly and are notoriously difficult to eradicate.
  • A new study shows that their quick reproductive cycles means that they quickly develop resistances to pesticides, to the point where pesticides alone are effectively useless.
  • The study highlights the importance of integrated pest management, such as keeping a clean house and combining different tactics to keep the critters at bay.
Keep reading Show less
Surprising Science

Space toilets: How astronauts boldly go where few have gone before

A NASA astronomer explains how astronauts dispose of their, uh, dark matter.

  • When nature calls in micro-gravity, astronauts must answer. Space agencies have developed suction-based toilets – with a camera built in to ensure all the waste is contained before "flushing".
  • Yes, there have been floaters in space. The early days of space exploration were a learning curve!
  • Amazingly, you don't need gravity to digest food. Peristalsis, the process by which your throat and intestines squeeze themselves, actually moves food and water through your digestive system without gravity at all.
Keep reading Show less
Videos

7 scientists we are thankful for this Thanksgiving

You may not recognize the names, but these seven scientists have improved the lives of people the world over.

Photo from CSIRO
  • We admire people who make a big show of their altruism, but some of the most praiseworthy accomplishments occur outside popular attention.
  • This Thanksgiving, we give thanks to seven scientists who made the world a safer, healthier place to live.
  • While there is still a lot of progress to make, the combination of science and humanism continues to improve the world and our lot in it at an unprecedented scale.
Keep reading Show less
Technology & Innovation

Scientists invent method to extract gold from liquid waste

The next gold rush might take place in our sewers.

Shutterstock
  • Even though we think of it as exceedingly rare, gold can be found all around us.
  • The trouble is, most of the gold is hard to get at; its too diluted in our waste or ocean waters to effectively extract.
  • This new technique quickly, easily, and reliably extracts gold from most liquids.
Keep reading Show less
Surprising Science

'Aquatic life is bathing in a soup of antidepressants,' says marine biologist

Antidepressants are destroying underwater ecosystems, which we in turn eat.

  • A new British study has discovered that "our aquatic life is bathing in a soup of antidepressants."
  • Entire ecosystems are being negatively affected by our pharmaceutical use.
  • The drugs re-enter our bodies when we consume seafood from these areas.
Keep reading Show less
Surprising Science