A couple of months ago astronomers reported the discovery of an unusual six-component “gravitational lens”—six images of the same object coming at us from slightly different positions in the sky. As light traveling across the universe passes a large mass, the gravity from the mass will serve as a kind of lens, bending the rays. […]
Guest Post
Ever get the feeling that the whole world’s privy to a joke you just don’t get? That sort of approximates my life in the sprawl of Kinshasa. For the next year or so, my wife Anne-Claire and I will call this notorious behemoth of a failed state home. I couldn’t be happier – to live […]
When I was young, my brother and sister and I caught salamanders in my grandparents’ garage and chased cats through the barn. The family farm was a big private playground, where we could poke at tadpoles in Nelson Lake (more like a large pond) and occasionally ride around on a giant lawnmower. More often than […]
Malaria causes more deaths in sub-Saharan Africa than car accidents, cancer, AIDS or war, even though the disease can be easily cured with an inexpensive pill. I find that fact incredibly disturbing, so I’ve traveled to Africa multiple times to write about this problem. But honestly, I mainly go to Africa because I like it. […]
Two summers ago I did something reckless: I went to a wild horse and burro auction in Bernalillo, New Mexico. I managed not to place any bids, but I fell in love many times over. Nothing is more beautiful than a wild mustang and these were going for a song. The 50 yearlings, mares and geldings were separated […]
My studies and work in science were limited to the physical until last year, staying far away from those messy life sciences. When I started studying science illustration, a field which has traditionally accompanied biology, it became clear that nausea was something I had better put aside fast. In fact one could consider my year […]
Yesterday I related the official version of how photons from the star Arcturus triggered an electrical signal that lit up the 1933 World’s Fair in Chicago. My research into that event, however, has sent me deep into the weeds. Most historical accounts claim that four observatories — Yerkes, Harvard College, Allegheny, and the University of […]
Arcturus, in the constellation Boötes the Herdsman, is the fourth-brightest star in the sky. It’s visible high overhead in late spring twilight, but you can also find it low in the west after sunset in September. All you need to do is let your eye follow the stars of the handle of the Big Dipper, […]