Spring Meteor Shower and 6 More Sky Events in May

Dazzling shooting stars kick off a month of great sky-watching opportunities, as the moon points the way toward some of the brightest worlds in our solar system. Backyard telescope users will also get a bonus view of alien eclipses, as some of Jupiter’s moons cross behind the giant planet.

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Listen to an Earthquake’s Eerie ‘Whale Songs’

Is it possible to “hear” an earthquake? Not the rumbling of the ground that results, but the earthquake itself. Even if you could, what’s the point of listening? About a dozen years ago, geophysicist Ben Holtzman and musician/sound designer Jason Candler set out to answer these questions, with a side goal of sharing their passion for earthquakes with the public.

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This May Be the Oldest Known Sign of Life on Earth

Stalks of iron-rich minerals, each a fraction the size of an eyelash, may be evidence of the earliest life-forms to inhabit the newborn planet Earth. The tiny hematite tubes are as much as 4.28 billion years old, according to the scientists announcing the find, and they are stunningly similar to structures produced by microbes living around undersea hydrothermal vents.

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Watch a Shark Rescued From a Line by Daring Beachgoers

For most beachgoers, a shark in the water is a reason to run. But local fishermen rushed to a blacktip shark’s aid after noticing a lure caught in its mouth and wire wrapped around its body. The shark was entangled off the coast of Jensen, Florida, a popular fishing spot in southeastern Florida.

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Mapping the Urban Bike Utopias of the 1890s

When you live in San Francisco, it’s not uncommon to see strange sights out your window. Once, I saw the mayor standing in the middle of the street, painting a bright green square on the asphalt. This was a historic moment, I later learned-the inauguration of the city’s first “bike box,” a designated space for cyclists to wait at an intersection.

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Seven Alien ‘Earths’ Found Orbiting Nearby Star

Seven rocky planets orbiting a nearby star may be roughly the size of Earth and could even be right for water-and maybe life-to adorn their surfaces, researchers announced Wednesday.

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Weird Life Found Trapped in Giant Underground Crystals

Creatures that thrive on iron, sulfur, and other chemicals have been found trapped inside giant crystals deep in a Mexican cave. The microbial life-forms are most likely new to science, and if the researchers who found them are correct, the organisms are still active even though they have been slumbering for tens of thousands of years.

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Human-Pig Hybrid Created in the Lab-Here Are the Facts

In a remarkable-if likely controversial-feat, scientists announced today that they have created the first successful human-animal hybrids. The project proves that human cells can be introduced into a non-human organism, survive, and even grow inside a host animal, in this case, pigs.

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New Poisonous Frog Species Discovered in Peru

Deep in the Peruvian Amazon, in a region known as the ManĂº Biosphere Reserve, Shirley Jennifer Serrano Rojas crouched near a stream. She listened while her audio recorder tracked the noise of the rain forest around her. Then she heard something: an unfamiliar frog’s croak, not far off.

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First Bumblebee Declared Endangered in U.S.

For the first time in the United States, a species of bumblebee is endangered. The U.S. Fish and Wildlife Service announced Tuesday on its website that the rusty patched bumblebee ( Bombus affinis), once a common sight, is “now balancing precariously on the brink of extinction.”

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