Science

8:17am

Sat September 7, 2013
Space

NASA Lunar Orbiter Solves Snag After Successful Launch

Originally published on Sat September 7, 2013 11:59 am

NASA Administrator Charles Bolden speaks before Friday night's launch of the LADEE moon orbiter. The craft has run into a small technical issue, NASA says, which it will fix before it arrives at the moon next month.
Carla Cioffi NASA

11:35am

Fri September 6, 2013
Space

Friday's Moon Launch Visible To A Potential 85 Million

Originally published on Sat September 7, 2013 4:07 am

An unmanned Minotaur rocket carries NASA's newest robotic explorer, the LADEE spacecraft, into Earth orbit and then to the moon.
Carla Cioffi AP

Updated, 11:40 p.m. EDT

The LADEE spacecraft is on its way to the moon. The rocket and its two-stage separation was visible at least from the Washington D.C. suburbs, and likely up and down the East Coast, given the clear skies.

Our original post:

Read more

5:00am

Fri September 6, 2013
Science

Finding An All-Natural Alternative To DEET

CDC Researcher Marc Dolan inserts a hand treated with nootkatone into a cage of hungry mosquitoes. The all-natural chemical is a powerful repellant and has the essence of grapefruit.
Centers for Disease Control and Prevention

Since West Nile Virus was first identified more than a decade ago, applying bug spray became a must for summer outings. But sprays containing DEET can be a turn off. They can be smelly and feel greasy. 

Read more

1:38pm

Thu September 5, 2013
Joe's Big Idea

Coronal Holes: The (Rarely Round) Gaps In The Sun's Atmosphere

Originally published on Tue September 10, 2013 3:21 pm

NASA's Solar Dynamics Observatory captured this picture of the sun on June 18. The dark blue area in the upper left quadrant of the sun is a huge coronal hole more than 400,000 miles across. Coronal holes are areas of the sun's outermost atmospheric layer — the corona — where the magnetic field opens up and solar material quickly flows out.
NASA/SDO

There's a hole in the sun's corona. But don't worry — that happens from time to time.

"A coronal hole is just a big, dark blotch that we see on the sun in our images," says Dean Pesnell, project scientist for NASA's Solar Dynamics Observatory. "We can only see them from space, because when we look at them [through] a regular telescope, they don't appear."

Read more

3:33pm

Wed September 4, 2013
Science

Scientists Demonstrate Leaner System For Quantum Encryption

Originally published on Wed September 4, 2013 6:48 pm

Navajo encryption boxes seen at right in 2003 employ principles of quantum physics. The latest research has shown the ability to run larger networks with less such hardware.
Elise Amendola Associated Press

Scientists have demonstrated the ability to scale-up an 'uncrackable' computer encryption system that utilizes quantum physics to ensure security.

The technique is based on information that is carried by photons, the basic particles of light. While it's been demonstrated on a small scale, the team headed by Andrew Shields and publishing in Nature says they've shown that up to 64 users can share a single photon detector, eliminating the need for each one to have such an (expensive) device.

Read more
Tags: 

Pages