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Brain

Sweets on the brain

Sugar-free sweeteners fool the body’s internal computer.

Animals

Bye-bye, George

Ambassador of endangered species everywhere dies from old age.

Space

Life beyond Earth

Are we alone? Scientists search for an extraterrestrial answer.

Animals

Skeeters ride the rain

Mosquitoes survive collisions with raindrops by going with the flow.

Earth

Venting volcanoes

Eruptions release bromine, a chemical that destroys ozone layer.

Fossils

End of big bug era

Flying predators probably gobbled up the biggest of the large flying insects 150 million years ago

Environment

Cool Jobs: Planet protectors

Scientists develop new technologies that will make future cities more sustainable.

Space

Galactic mashup

Save the date: The Milky Way will merge with its nearest large neighbor in about 4 billion years.

Brain

The smell of old people

Tests show that older adults have a distinct odor, but it isn’t bad.

Earth

The oldest place on Earth

Antarctica may seem like the dead continent, but it once bustled with life — a little of which still survives.