Roy Smith

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Drake equation: How many alien civilizations exist?

Play with our interactive graphic to work out how many intelligent civilizations there could be in our universe.<p>Are we alone? It is a question that has occupied mankind for centuries.<p>Today, we live in an age of exploration, where robots on Mars and planet-hunting telescopes are beginning to allow …

The Fermi Paradox

<i>PDF: We made a fancy PDF of this post for printing and offline viewing. Buy it here. (Or see a preview.)</i><p>Everyone feels something when they’re in a …

19 Things You Might Not Know Were Invented by Women

Necessity isn't the only mother of invention. Though it wasn't always easy to get patents or the credit they deserved, women are responsible for many …

2050 - and immortality is within our grasp

Aeroplanes will be too afraid to crash, yoghurts will wish you good morning before being eaten and human consciousness will be stored on supercomputers, promising immortality for all - though it will help to be rich.<p>These fantastic claims are not made by a science fiction writer or a crystal …

7 Sites You Should Bookmark To Save On College Textbooks

We're here to help.<p>With the growing popularity of e-books to online swap meets, there's absolutely no reason to plop down big money for glossy hardbacks when you could be saving that cash for student loans down the road.

Textbooks

Ring Clock

Whether you're averse to wearing things on your wrist, or you're just looking for an interesting way to start a conversation at parties, the Ring …

16 Ice Cube Trays That Are Anything But Square (list)

Not much thought goes into ice cubes at a party, but you’d be surprised at how much shaped ice cube trays can really spruce up the atmosphere! Not …

Cloud modeling expands estimate of life-supporting planets

A new study that calculates the influence of cloud behavior on climate doubles the number of potentially habitable planets orbiting red dwarfs, the …

Bumpy reptile skull rewrites the prehistoric record

There weren't many skin treatment solutions that we know of some 266 to 252 million years ago. But even if there had been, they wouldn't have been able to help <i>Bunostegos akokanensis</i>, a giant, plant-eating reptile that roamed the central deserts of the then-single continent of Pangea. Three recently …

A New Equation Reveals Our Exact Odds of Finding Alien Life

It’s been over half a century since Frank Drake developed an equation to estimate the probability of finding intelligent life in our galaxy. We’ve …

Exoplanets

Evangelicals to GOP: Don't betray us

After Todd Akin last year and Trent Franks last week, abortion is the last topic many national Republicans want the political conversation to focus on.<p>Yet social conservatives in town this weekend for the Faith & Freedom Coalition conference said the GOP would be making a grave mistake to ignore …