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Very likely, the last image that comes to mind when thinking of black holes is that they need to be nurtured, coddled and protected when young. But new research reveals the first large black holes in the universe likely formed and grew deep inside gigantic, starlike cocoons that smothered their powerful x-ray radiation and prevented surrounding gases from being blown away.
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Read the rest of First Black Holes May Have Formed in "Cocoons" (503 words)

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Before you buy a telescope, here's what you need to know.

As on Earth, electrical fields above Saturn interact with atmospheric chemicals to produce shimmering lights above the polar regions.

The seven astronauts on shuttle Atlantis have bid farewell to the crew of the space station and are gearing up to undock on Wednesday.

Mars rover Spirit hit another snag in attempt to free itself when one of its wheels stalled.

New solar observatory to probe sun's inner and outer workings.

The crew of the shuttle Atlantis plans to spend today wrapping up work at the International Space Station (ISS) in preparation for departure tomorrow.

The mystery of an acorn-shaped object that fell from the sky still intrigues the masses.

Website lets users play cosmic slot machine to match up modeled galaxy mergers with real ones.

Blue Origin announced that it has picked three research payloads to fly on the New Shepard suborbital vehicle.

Two NASA astronauts completed their mission's third and last spacewalk Monday, installing a new science experiment and an oxygen tank outside the International Space Station.

A plan to send a crew of astronauts to an asteroid is gaining momentum,- both within NASA and industry circles.

A new map of the remains of a valley network on Mars suggests the planet once harbored an ocean.

Massive stars likely form just like their smaller siblings.

NASA's pursuit of space-age technology has come down to Earth in the form of anti-gravity treadmills, UV-resistant clothing, and better robots.

Russian cosmonaut Konstantin Feoktistov, the first civilian in space and member of the first 3-man space crew, has died at age 83.

Talk about one proud papa. Astronaut Randy Bresnik is beaming with joy at the arrival of his new baby daughter, who was born late today while he circled the Earth.

Goodbye Earth.