Asteroid

Kleopatra gave birth to twins … moons

Publication: msnbc.com   Date: February 23, 2011   View Article

Kleopatra, a dog-bone shaped asteroid named after the last pharaoh of ancient Egypt, is a pile of rubble that spawned twin moons about 100 million years ago, astronomers announced in a new study.

The discovery stems from detailed observations of 135-mile-long Kleopatra with the Keck II telescope in Hawaii made in 2008 that confirmed the asteroid’s dog-bone shape and the presence of two moons, each about 5 miles wide.

Seven out-of-this world destinations

Publication: MSNBC.com   Date: April 13, 2010   View Article

We are headed to Mars … eventually. But first we need the rocket technology and human spaceflight savvy to get us there safely and efficiently. And the best way to do that is to visit places such as asteroids, our moon, a Martian moon and even no man’s lands in space called “Lagrange points,” NASA administrator Charles Bolden explained during the unveiling of the agency’s revised vision for space exploration.

The vision shifts focus away from a return to the moon as part of a steppingstone to Mars in favor of what experts call a “flexible path” to space exploration, pushing humans ever deeper into the cosmos.

10 signs of a rough and tough universe

Publication: MSNBC.com   Date: August 12, 2009   View Article

The space rock that recently plowed into Jupiter and gave it a black eye the size of the Pacific Ocean served up a not-so-gentle reminder of the rough and tough side of our universe. Check out this and nine more bouts of violence in outer space

Huge Impact Crater Uncovered in Canadian Forest

Publication: National Geographic News   Date: November 25, 2008   View Article

About 1,100 years ago a space rock the size of a big tree stump slammed into western Canada, carving an amphitheater-like crater into the ground and littering it with meteorites, a new study found.

Giant Meteor Fireball Explodes over Northwest U.S.

Publication: Giant Meteor Fireball Explodes over Northwest U.S.   Date:   View Article

A meteor zipped across the U.S. Pacific Northwest sky early Tuesday morning before exploding, possibly littering eastern Oregon with marble- to basketball-size space rocks, an expert says.

Dark Skies Initiatives Aim to Boost Stargazing

Publication: National Geographic News   Date: May 16, 2006   View Article

As light pollution worsens across the United States, astronomers are urging citizens to protect their night skies.

“Light has little utility when it shines up into the sky and does nobody good whatsoever,” said William Brown, an astronomy professor at Colorado State University in Pueblo.

Mystery Undersea Extinction Cycle Discovered

Publication: National Geographic News   Date: March 9, 2005   View Article

Robert Rohde and Richard Muller are vexed. For the past 542 million years the number of animal species living in the world’s oceans has risen and fallen in a repeating pattern, and the scientists haven’t the foggiest idea why.

“I wish I knew what it all meant,” said Muller, who is a professor of physics at the University of California, Berkeley.

© 2008-2010 Collected Writings By John Roach