Joseph Branstetter

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Michio Kaku Explains String Theory

1st Black Holes Discovered in Milky Way Star Clusters --"May Produce 'Ripples' in Spacetime"

Black holes in globular clusters may provide a way for them to get close enough to one another to merge into bigger black holes that may produce the …

At least 8.8 billion Earth-size, just-right planets found, study says

Space is vast, but it may not be so lonely after all: A study finds the Milky Way is teeming with billions of planets that are about the size of Earth, orbit stars just like our sun, and exist in the Goldilocks zone -- not too hot and not too cold for life.<p>Astronomers using NASA data have …

Scientists discover Earth’s fiery doppelganger

Kepler-78b is the first known planet that's similar in size and composition to Earth<p>The sci-fi worlds of <i>Star Wars</i> and <i>Star Trek</i> have trained us to think there are rocky, solid planets orbiting far away stars that are so similar to Earth we could walk upright and breathe their atmosphere. In reality, …

WIRED Space Photo of the Day 2013

PhysicsWhy Do You Feel Lighter at the Top of a Ferris Wheel?<p>Author: Rhett AllainRhett Allain<p>EcologyHow Plastic Straws Slip Through the Cracks of …

Mirach is guide star to three galaxies

The orange-colored star Mirach in the constellation Andromeda acts as your guide star to 3 different galaxies.<p>The star Mirach (Beta Andromedae) in …

Farewell: Planck Space Telescope Shuts Down

After running out of coolant, the telescope ends its mission to map light from the Big Bang.<p>Bon voyage, Planck. The European Space Agency sent the final command to the Planck space telescope today, ending a four-and-a-half year mission to examine the universe's Cosmic Microwave Background (CMB), …

Oldest and most distant galaxy ever discovered was a prolific star factory

Astronomers have spotted the most distant galaxy ever seen after a faint ray of light struck a telescope on a volcano in the middle of the Pacific.<p>The ancient group of stars lies 30bn light years from Earth, far beyond the handle of the Big Dipper that traces a celestial saucepan in the …

Our Milky Way galaxy wobbles

Our home galaxy, the Milky Way, makes small wobbling movements. Possible causes include the passage of a smaller galaxy through our own.<p>It is common …

Universe

A rocky history: researchers explain why early meteorites are different from earthly stones

From Earth to the moon to Mars, the rocky structures of celestial bodies were built using the very same mixture of oxygen. But for 40 years now, researchers have been noticing something strange: meteorites from the early days of the Solar System are built with a different mixture of oxygen, one …

Big Pic: A Bright Flash From The Sun

A mid-level burst of radiation looks like a twinkle in the sun's eye.<p>At 8:30 p.m. Eastern time yesterday, a solar flare peaked on the surface of the sun, emitting an intense burst of radiation. NASA's Solar Dynamics Observatory captured the M9.4-class event at a wavelength of 131 Angstroms in order …

Astronomy

The coldest place in the universe

Astronomers say the Boomerang Nebula is the coldest place in the universe at one degree Kelvin (minus 458 degrees Fahrenheit). It’s even colder than …