Tuesday November 25th 2014

Posts Tagged ‘astronomy’

Are we alone?

Are we alone?

  If aliens ever sent us a message, scientists hope to pick it up in a remote part of northern California.   There, in a clearing nestled amid the volcanoes of the Cascade Range, 42 radio dishes point together at the sky. The dishes, each 20 feet across, form a [Read More]

Bringing down the trash

Bringing down the trash

The density of junk orbiting the Earth is at or near a critical value beyond which this man-made debris will self-perpetuate, forming many smaller pieces that are even more of a problem.I wrote this article for Physics World about the latest ideas about how to bring down [Read More]

Moon twinkles

Moon twinkles

If you ever travel to the moon, don’t forget to pack a heavy-duty umbrella. It’s not for downpours: With no atmosphere, there’s no chance of rain. But hundreds of times each year, small space rocks smash into the lunar surface, flashing brightly enough to be seen from [Read More]

Mapping the invisible

Mapping the invisible

Most maps show places you can visit and how to get there. Most maps, however, were not made by astronomers — physicists who study stars and galaxies far, far, far away. At a recent meeting in Texas, three teams of these scientists presented new maps unlike any atlas, [Read More]

Not Seeing Sunspots

Not Seeing Sunspots

The sun’s next cycle is off to a slow start, say researchers at the National Solar Observatory in Tucson. This short news article for kids is adapted from a Science News article by Ron Cowen. [Read More]

End of an Era

End of an Era

I wrote about the end of the space shuttle program for Science News for Kids. Here’s the whole story. [Read More]

The Dark Side of the Universe

The Dark Side of the Universe

I wrote this feature about dark matter and dark energy for Science News for Kids. Read the whole story here. Photo credit: NASA, ESA, and Dan Coe   [Read More]

Planets with screwy orbits

Planets with screwy orbits

Ever since astronomers started finding planets orbiting other stars, they have been learning just how rich and peculiar the cosmos can be. Recent observations. add yet another head-scratcher: giant gas planets that circle their stars on wildly tilted orbits or go around [Read More]

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Can an Equation be a Poem?

Can an Equation be a Poem?

April is Mathematics Awareness Month. April is alsoNational Poetry Month. Coincidence? Yep, almost definitely. But [Read More]

Supersized Viruses

Supersized Viruses

On February 22, festival-goers at Melbourne’s dusk-to-dawn White Night celebration lined up in droves outside the [Read More]

Saving endangered ‘tongues’

Saving endangered ‘tongues’

  Ong uyan madongo? You probably don’t know how to answer that question — unless you happen to be one of the [Read More]

Archimedes in the Fence

Archimedes in the Fence

According to ancient historians, Archimedes spent the last moments of his life drawing figures in the dirt, so deeply [Read More]

Mathematics in Metal

Mathematics in Metal

      A mathematical surface known as the Klein bottle is like a mischievous, mathematical cousin of the [Read More]

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