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On June 5-6, 2012, NASA’s Solar Dynamics Observatory collected images of one of the rarest predictable solar events: the transit of Venus across the face of the Sun. NASA/SDO, AIA

Why we need to get back to Venus

This hot, acidic neighbor with its surface veiled in thick clouds hasn’t benefited from the attention showered on Mars and the Moon. But Venus may offer insights into the fate of the Earth.
Textbook prices are taking a toll on student finances. alphaspirit/Shutterstock.com

Why do college textbooks cost so much? 7 questions answered

Textbook prices are causing many college students to forego the books they need for class, putting their grades in peril and leading many to miss out on certain courses, research shows.
An all-renewable grid will mean more electricity and more transmission lines. Russ Allison Loar/flickr

How to have an all-renewable electric grid

We have all the technologies needed to make the electric grid run on renewables and lower pollution. What are they and what are the barriers to adopting them widely?
Boxers Floyd Mayweather Jr. and Conor McGregor engage in some verbal sparring prior to their 2017 bout. AP Photo/John Locher

When does trash talking work?

Whether it frustrates or motivates your opponent can depend on the situation.
Voodoo believers walk during the annual Voodoo festival Fete Gede at Cite Soleil Cemetery in Port-au-Prince, Haiti. AP Photo/Dieu Nalio Chery

What is Haitian Voodoo?

Voodoo is often seen as a practice involving magic. In Haiti, Voodoo is a religion born out of the struggle of slaves. And today, it is used as a form of healing and protection.
College rankings often take student caliber into account, an analysis shows. vectorfusionart/Shutterstock.com

College rankings might as well be student rankings

College rankings are set up to make you believe one college is better than another. But a closer look reveals college rankings may be measuring something entirely different.
“Give me your tired and your poor who can stand on their own two feet. And who will not become a public charge,” said Acting head of Citizenship and Immigration Services Ken Cuccinelli. AP Photo/Seth Wenig

Trump administration revives public charge clause that kept Nazi-era refugees from the US

During the Nazi era, roughly 300,000 additional Jewish refugees could have gained entry to the U.S. But the immigration law’s “likely to become a public charge” clause kept them out.
Some of Guthrie’s greatest champions have had difficulties with the song. Al Aumuller/Library of Congress

The misguided attacks on ‘This Land Is Your Land’

Woody Guthrie’s anthem has become a rallying cry for immigrants. But did he really have a ‘blind spot’ for Native Americans, as some have claimed?
Mohammed Morsi, a member of the controversial Islamist political organization the Muslim Brotherhood, was Egypt’s first democratically elected president. He was overthrown in a coup in 2013 and died on trial this June. Reuters/Amr Dalsh

How two Islamic groups fell from power to persecution: Egypt’s Muslim Brotherhood and Turkey’s Gulenists

A few years ago, Egypt’s Muslim Brotherhood and Turkey’s Gulenists were running the show. Now both religious movements face political repression. How did they fall so far, so fast?
Alejandro Giammattei es un ex director de sistema penitenciario cuyo mandato se vio empañado por el asesinato de siete prisioneros en 2006 durante una redada policial. Fue acusado, pero nunca afrontó cargos relacionados con esas muertes. AP Photo/ Santiago Billy

Guatemala: Corrupción e inseguridad son los primeros retos del próximo presidente

El círculo de allegados del presidente-electo guatemalteco Alejandro Giammattei está formado por ex generales y agentes de poder de élite, los mismos que han gobernado el país durante décadas.