‘What difference would it make to human life if a celestial event were unequivocally linked to the very night of Jesus’ birth?’ Nathan Rupert/Flickr

Does it matter if there was really a Star of Bethlehem?

What difference would it make to human life if a celestial event were unequivocally linked to the very night of Jesus’ birth?
Blood is just one of the body fluids we need to survive. Blood bag via www.shutterstock.com.

Eleven body fluids we couldn’t live without

By learning a bit more about these body fluids, we can develop a deeper appreciation for the beauty and complexity of our own biology.
Representative Paul Ryan arrives to talk to the media after being nominated for speaker of the House of Representatives on Capitol Hill in Washington October 28 2015. Yuri Gripas/Reuters

What should we make of Paul Ryan’s fondness for Ayn Rand?

Saying that Ayn Rand had some useful economic and political ideas does not, however, compel Ryan to adopt her entire philosophy lock, stock and barrel.
George Thomas/Flickr

The universe’s most miraculous molecule

It’s the second most abundant substance in the universe. It dissolves more materials than any other solvent. It stores incredible amounts of energy. Life as we know it would not be possible without it…
Mysteries of the mind. Brain via www.shutterstock.com.

Oliver Sacks, the brain and God

Oliver Sacks, the celebrated neurologic storyteller who died at the end of August at age 82, once described himself as “strongly atheist by disposition.” Sacks could write sensitively about religion, including…
Ouch. PROKris Fricke/Flickr

America’s most lethal animal

Animal attacks have been in the news a lot. Late last year, a 22-year-old student in New Jersey was killed by a black bear he had been photographing. This summer, swimmers off the coast of North Carolina…
The dispute between Philipp Lenard and Albert Einstein sheds considerable light on the power of nonscientific concerns to sway scientists. NASA via Wikimedia Commons

When science gets ugly – the story of Philipp Lenard and Albert Einstein

Scientists are not always as scientific as many suppose. Recent well-publicized cases of scientific fraud prove that scientists can be as susceptible to the allures of wealth, power and fame as politicians…
In four out of five churches in the US, membership has plateaued or is declining. Church via www.shutterstock.com.

When ministry doesn’t pay

Mindy Mayes is a 29-year-old African-American woman with a second job many might find undesirable. Some might even call her crazy for sticking with it. She thinks about it almost constantly, and those…
If education is to improve the underlying causes of poor teacher morale must be addressed. Students via www.shutterstock.com.

Something is rotten in the state of US education

A report released last year estimates that nearly half of the nation’s new teachers quit within five years, a rate of attrition that costs the United States over US$2 billion annually. Each year, in fact…
World Food Programme (WFP) staff members load bags of split yellow peas into a truck in a WFP warehouse based in El Fasher, North Darfur, for delivery and distribution in camps for displaced persons (IDPs) in Shangil Tobaya, North Darfur. UN Photo/Albert González Farran

Good intentions and poor results – John Steinbeck’s lessons on humanitarian aid

Steinbeck highlights an insight all too often lost on many contemporary poverty fighters around the world: efforts to help sometimes turn out to harm.

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