Rosetta and Philae: Plucky siblings for life

On September 30, the Rosetta orbiter will make a controlled collision with Comet 67P/C-G. It is not designed for landing, so this is the last we will hear from it. This date also marks an end to a happy period for my family that started in 2013 when my son was just four years old […]

A Concatenation of Extraterrestrials

The past few days have been a cosmic convergence of opinions about extraterrestrial life.  First, I’ve been interviewing scientists and engineers who think that funding searches for planets that might support life isn’t unreasonable.  Second, a neighbor told me he’d read in the New York Times that extraterrestrial life almost certainly had evolved somewhere, some […]

“The Martian” and Ice Age Astronauts

Two nights ago I sat in a theater watching the film “The Martian.” I loved seeing a viable spacecraft making gravitational slingshots around planets while a stranded, potato-growing astronaut claimed himself the first colonist on Mars. What’s there not to love? Meanwhile, in my coat pocket I carried an object from an entirely different age […]

On the Discovery of Liquid Water on Mars

The first memory I know for sure is the smell of rain. I remember a screen door with holes in it big enough to let in a hummingbird, and outside I could see blue bellies of clouds over a dirt road. I can only figure it was somewhere in Arizona where I was born. I’ve always […]

Mocking Tricks

Caveat: I’m possibly having something like a Cassie-Willyard-Hubble-Moment here – in this case, I learn something new, don’t quite understand it but get all excited about it, and it’s, you know, wrong.  Never mind because I’m all excited anyway because science has found a new way of being confident that what you know is right.  […]

Truth vs. Beauty, Again

I haven’t got much on my mind today that I want to think about so I distract myself with pictures. This one, as science pictures often do, conflates beauty and truth and let me repeat, beauty.  It’s a result of letting the Hubble Space Telescope take repeated pictures of a single cluster of galaxies.  Clusters […]

The Best Science to Write About and the Worst

As of yesterday, May 20, LWON has been alive for five years. LWON is a little surprised at this and pretty pleased with itself.  In celebration, two of our brilliant alumni wrote guest posts listing the Top Five Things They Wanted to List the Top Five Of.  Today, Five People of LWON announce the best […]