Saturday April 18th 2015

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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Where will lighting strike?

Where will lighting strike?

  Michael McQuilken will never forget the day lightning struck his younger brother.   On August 20, 1975, he [Read More]

How we got to Ceres

How we got to Ceres

NASA’s Dawn spacecraft recently reached the orbit of Ceres, a dwarf planet and the largest object in the asteroid [Read More]

Science in Hollywood

Science in Hollywood

There’s so much snow in the movie Frozen that the cold white stuff might as well be the star of the animated film. It [Read More]

Science behind the scenes

Science behind the scenes

  Jerry Zucker! Natalie Portman! Arthur C. Clarke! My article about the Science & Entertainment Exchange is [Read More]

Freeing the dinos within

Freeing the dinos within

Paleontologists have long faced a daunting obstacle to their research: Fossils are usually embedded in rock. To [Read More]

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