With its all-sky infrared survey, NASA's Wide-field Infrared Survey Explorer, or WISE, has identified millions of quasar candidates. This image zooms in on one small region of the WISE sky, covering an area about three times larger than the moon. The WISE quasar candidates are highlighted with yellow circles.
"In one study, astronomers used WISE to identify about 2.5 million actively feeding supermassive black holes across the full sky, stretching back to distances more than 10 billion light-years away. About two-thirds of these objects never had been detected before because dust blocks their visible light. WISE easily sees these monsters because their powerful, accreting black holes warm the dust, causing it to glow in infrared light."
In the fall of 2008 my friend, TJ Anderson — a member of the University of Iowa's Herky the Hawk mascot squad — took note of an unused space in the southwest corner of Kinnick Stadium in Iowa City. And the idea of "Herky's Nest" was born.
TJ envisioned creating Herky's Nest — a home for Herky — that also serves as a premium seating area for children and families from the University of Iowa Children's Hospital. The goodwill gesture brings the community together in a lighthearted and meaningful way.
Originally published on Mon October 15, 2012 9:33 am
We've come to accept the baby-fication of our vegetables – baby spinach, baby lettuce, and baby squash prized for their tenderness and cute size have staked out territory in the produce section of many a grocery store.
Scientists in Germany have been able to get enough DNA from a fossilized pinky to produce a high-quality DNA sequence of the pinky's owner.
"It's a really amazing-quality genome," says David Reich of Harvard Medical School in Boston. "It's as good as modern human genome sequences, from a lot of ways of measuring it."
The pinky belonged to a girl who lived tens of thousands of years ago. Scientists aren't sure about the exact age. She is a member of an extinct group of humans called Denisovans. The name comes from Denisova cave in Siberia, where the pinky was found.
Originally published on Wed September 5, 2012 9:02 am
There are claims flying back and forth today over whether Republican vice presidential nominee Paul Ryan has falsely accused President Obama of breaking a promise to make sure a GM plant in Ryan's hometown stayed open.
My friend Erica Raggett is one of those rare individuals who, when she heard about something atrocious, didn't forget about it, feel sad about it, or throw money at it.
She did something about it.
The just-opened A 2nd Cup is Erica's vision of a non-profit coffee shop that seeks to raise awareness of human trafficking in the Houston community, partner with other anti-trafficking organizations and fund aftercare solutions for survivors.
"This situation could happen to me at the Democratic convention or standing on the street corner. Racism is a global issue," CNN camerawoman Patricia Carroll, in an interview with an institute that promotes diversity in the news media, says of the ugly racial taunts directed her way Tuesday night at the Republican National Convention in Tampa.
The aftermath of a truck bomb in Kandahar, the main city in southern Afghanistan, which wounded the provincial police chief and killed two civilians Monday. Taliban attacks against Afghan officials are up sharply this year.
Credit Ahmad Nadeem / Reuters via Landov
Afghans bury the mayor of Kandahar, Ghulam Haidar Hamidi, after he was killed in a suicide bombing in July 2011. Afghan officials have extensive security but are still vulnerable to attack.
Almost daily, Taliban assassins target Afghan government officials and community elders with ambushes or bombings. The United Nations says such killings are up more than 50 percent compared to the same period last year.
On Monday, the target was the powerful police chief in southern Afghanistan's Kandahar province. A suicide bomber struck the convoy of Gen. Abdul Raziq, who survived the attack and is at a U.S. military hospital recuperating from burns and other injuries.