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Posts Tagged "star formation"

Life, Unbounded

Interstellar Space Can Be Pebbly

Are there interstellar pebbles here? The red strands of dense interstellar grains seen with the Green Bank raio telescope (Credit: S. Schnee, et al.; B. Saxton, B. Kent (NRAO/AUI/NSF); We acknowledge the use of NASA's SkyView Facility located at NASA Goddard Space Flight Center.)

We’re used to thinking of the space between the stars as void, bereft of all but the most sparsely distributed atoms and molecules, or the occasional microscopic grain of silicon or carbon dust. Even the densest cores of nebula – molecular clouds – only attain average densities of a few million atoms or molecules per [...]

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Life, Unbounded

A Pink Stellar Nursery and a Telescopic Birthday

Glowing hydrogen and a stellar birthplace 6,500 light years away (ESO/VLT)

Fifteen years ago the European Southern Observatory, a consortium of 15 member states, started scientific operations with the Very Large Telescope (VLT) on Cerro Paranal in the Chilean Atacama desert. The VLT is a beast of an observatory, to put it mildly.                     Four 8.2 meter [...]

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Life, Unbounded

Andromeda mon amour

Andromeda (GALEX/NASA/JPL)

There is something beautiful yet ominous about our nearest large galactic neighbor. The Andromeda galaxy is a trillion star behemoth that spans some six times the diameter of the full Moon when seen through a telescope. At only 2.5 million light years away from the Milky Way it’s barely an intergalactic stone’s throw from us, [...]

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Life, Unbounded

Black Hole Roundup

Spinning black hole (NASA)

Black holes, black holes, and more black holes. In the past few weeks I’ve been thinking, talking, and even dreaming about black holes (yes really, somnolent thoughts seem well suited to these fantastic objects). Mostly this has been an effect of my book Gravity’s Engines hitting the shelves, but it’s also because barely a day [...]

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Life, Unbounded

Black Holes Are Coming!

The center of the Milky Way seen in 6cm radio emission. Our central supermassive black hole lurks in the spiral-ring like structure to the right.(Credit: VLA, Prof. K.Y. Lo, University of Illinois, Urbana-Champaign, Dept. of Astronomy)

On August 14th 2012 my new book, Gravity’s Engines, will launch. I’m enormously excited about this, and over the next couple of months – increasingly so as publication date approaches, Life, Unbounded will carry some posts that talk about the science between the covers. The subject matter of Gravity’s Engines may appear a little surprising [...]

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