Light is something we experience every day. For most people, “light” refers to what humans can detect with our eyes. It is illumination, what ignites our visual sense, the yin to the yang of dark. However, the type of light humans can detect with our eyes is just a sma...

The Earth at night. Credit: NASA

On Saturday, March 24th, between 8:30 and 9:30 pm local time, people around the globe will shut off their lights to participate in Earth Hour. The idea behind it is to “switch off lights and make noise for the Earth,” to highlight climat...

The total solar eclipse that will take place over North America in a couple of weeks is a chance for millions of people to experience an exciting event (with proper viewing glasses to protect our sensitive eyes, of course!). Given the population’s demographics, it stan...

In honor of the upcoming total solar eclipse (on August 21st, 2017 ☀️🌗🌎), our publisher, Black Dog & Leventhal has launched a new giveaway on Goodreads for our book "Light: The Visible Spectrum and Beyond". 

Enter for a chance to win one...

(Pictured: 2008 solar eclipse from Russia. (Kalan, CC BY 3.0))

On August 21st, a total solar eclipse will be visible from Oregon to South Carolina. This event will be a once-in-a-lifetime event for millions in the United States who will get to experience what happens, f...

July 27, 2016

Objects in space are rather far away. The Moon is our closest celestial neighbor at nearly a quarter million miles from Earth, and the nearest star, our Sun, is 93 million miles away.

These extreme distances mean that it’s usually impossible to touch real objects in spa...

February 20, 2016


Lately, we've been blogging over at the Daily Beast and the Huffington Post.  You can catch up with our most recent pieces here:


It’s Time to Abolish Science’s Boys Club

This has been a challenging year for women in the fields of science, technology, engineering, and...

November 28, 2015


X-rays are useful in doctor and dentist offices – and also for studying black holes and dark matter.

Dental X-rays are useful for detecting cavities. Credit: Wikimedia Commons/Dmitry G

Most of us encounter X-rays when we have an unfortunate experience with a broken...

November 24, 2015

Most animals cannot see ultraviolet light, but there are exceptions including some butterflies, insects, and maybe Claude Monet.


Bees, important for distributing pollen, can detect some UV light. (Credit: Wikimedia Commons - Jon Sullivan)


Ultraviolet, or “UV,” as it’s...

November 22, 2015

Just because someone has “color blindness” doesn’t mean that they can’t see any color.

Do you have any color deficiencies in your vision?  If not, you should clearly see the number 74 above.  If so, you might see a 21 or no numbers at all.  Image: Wi...

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