Asteroids

The Nicaragua Crater: The Result of a Meteorite Impact or Not?

by David Dickinson September 8, 2014

By now, you’ve seen the pictures. As astronomers tracked the close pass of Near Earth Asteroid 2014 RC this weekend, reports came out of Nicaragua that a possible meteorite struck near the capital of Managua. Details are still sketchy, but government sources cite reports of a loud bang and ground tremor late Saturday night on […]

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Speed Demon Asteroid Sprints Safely Past Earth Today

by Bob King September 7, 2014

Earth-approaching asteroid 2014 RC ripped pass Earth today, got its orbit refashioned by our planet’s gravity and now bids us adieu. I thought you’d like to see how fast this ~60-foot-wide (20-meter) space rock moved across the sky. The team of observers at Remanzacco Observatory in Italy  photographed it remotely with a telescope set up in Australia. […]

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Get Ready for Sunday’s Close Flyby of Asteroid 2014 RC

by Bob King September 4, 2014

Guess who’s dropping by for a quick visit this weekend? On Sunday, a 60-foot-wide (20-meters) asteroid named 2014 RC will skim just 25,000 miles (40,000 km) from Earth. That’s within spitting distance of all those geosynchronous communication and weather satellites orbiting at 22,300 miles. 

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Here’s Your Chance To Send A Message To An Asteroid

by Elizabeth Howell September 2, 2014

What’s your vision for solar system exploration? And how cool would it be to send it literally into the solar system? NASA is offering its fans the chance to compose a tweet or send a picture showing how we can step out into the cosmos. The best ones among these will be placed aboard a […]

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Hunting for “Minimoons” Orbiting Earth

by David Dickinson September 2, 2014

It’s an engaging thought experiment. What if Earth had multiple moons?  Our world has one large natural satellite, just over a quarter the diameter, 1/50th the volume, and less than 1/80th the mass of our fair world. In fact, the Earth-Moon system has sometimes been referred to as a “binary planet,” and our Moon stands […]

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