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Scientist Zachary Cooper climbs down a ladder into a tunnel leading to a cryopeg, a pocket of super-cool water suspended in the Alaskan permafrost, May 2018. Researchers are harnessed to a rope for safety.

Deep below Alaskan ice, tiny life forms went untouched for 50,000 years. Scientists are probing them to improve the hunt for aliens.

Scientists found bacteria in liquid pockets under Alaskan permafrost. The microbes may offer clues about what life looks like on other planets.
An illustration of NASA's Mars 2020 rover exploring the Martian surface.

NASA will dig for signs of alien life on Mars in Jezero Crater — the landing site for its 2020 rover

NASA picked a landing site for its new Mars 2020 rover: Jezero Crater. The giant impact basin the Martian equator may hide signs of microbial life.

Tiny organisms discovered in Earth’s driest desert raise hopes that life could be lurking in the soil of Mars

When rain hits the Atacama Desert, one of the driest places on Earth, dormant microbes spring back to life. This is a model for how life on Mars could persist.

What your nightly routine should look like, according to science

Wondering when to stop drinking coffee and using screens to avoid messing with your sleep? How often you should wash your sheets? We've got you covered.
An epoxy mount containing a sliver of a nearly 3.5 billion-year-old rock from the Apex chert deposit in Western Australia.

The oldest known fossils show life on Earth began more than 3.5 billion years ago — and indicate life in the universe may be common

New findings indicate that diverse life existed on our planet before many thought possible — which might mean it's easier for life to evolve than we thought.

How often you should wash your bed sheets, according to a microbiologist — and what happens when you don’t

If left too long, the microscopic life within the folds of our bed sheets can make us sick, according a New York University scientist.

Your kitchen sponge is even more gross than you thought — here’s how often you should replace it

Kitchen sponges are dirtier than toilets. In fact, microbiologists say that the things you use to clean dishes are the filthiest objects in your home.

A woman in Texas has died from ‘flesh-eating bacteria’ in Harvey’s floodwaters

Hurricanes Irma and Harvey left Texas and Florida strewn with billions of bacteria, which are now causing infections and have led to at least one death.

A microbiologist explains why he hasn’t slept without this on his bed in 25 years

It protects him from what he calls a "zoologic park" of bacteria and debris — which is typically why people need to replace their mattress.

A growing threat could kill 10 million people by 2050, but one company thinks it can stop it

Eligo CEO told Business Insider that its technology, which uses CRISPR to tackle antibiotic resistance, would be the ultimate form of personalized medicine.