Space

10:49am

Thu August 15, 2013
Science

'Mature' Galaxies Around Not Long After Big Bang, Study Says

Originally published on Thu August 15, 2013 1:42 pm

Chart showing galaxy formation 11 billion years ago.
ESA/Hubble

6:20am

Thu August 15, 2013

10:20am

Fri August 9, 2013
The Two-Way

Look For Shooting Stars During This Weekend's Perseid Peak

Originally published on Fri August 9, 2013 3:47 pm

A Perseid meteor streaks across the sky early on August 13, 2007 in the ghost town of Rhyolite, Nevada.
Ethan Miller Getty Images

Time to stretch out the lawn chairs, lie back and enjoy the once-a-year celestial show known as the Perseid meteor shower.

The Perseids, the dusty debris of Comet Swift-Tuttle, whisk through our upper atmosphere every August. They aren't the only meteor shower on the calendar, but "the Perseids are the good ones," says meteorite expert Bill Cooke of NASA's Marshall Space Flight Center in Huntsville, Ala.

Read more
Tags: 

12:27pm

Thu August 8, 2013
The Two-Way

U.S. 'Space Fence' Will Cease To Operate, Site Says

Originally published on Thu August 8, 2013 2:54 pm

A rendering of objects currently in Low Earth Orbit (not illustrated to scale). According to NASA, "approximately 95 percent of the objects in this illustration are orbital debris, i.e., not functional satellites."
NASA

A U.S. radar system that tracks thousands of objects orbiting Earth — from satellites to harmful debris — has been slated for shutdown, according to the Space News site. The ground-based network known as the "Space Fence" may cease to operate in October.

Read more

10:44am

Thu August 8, 2013
Science

NASA: Sun Getting Ready For A 'Field Flip'

Originally published on Thu August 8, 2013 1:05 pm

NASA/SDO

Our nearest star is about to pull a once-in-11-years move by swapping its north and south magnetic poles.

The sun's polarity switch is a natural part of "solar max" — the period of peak activity during what averages out to be roughly an 11-year cycle. According to NASA, this year will mark the fourth time since 1976 that scientists have observed the 180-degree pole flip.

Read more

Pages