 BRIAN HENRY
                  
        
      
 
 
BRIAN HENRY
Asteroids
Initially called “vermin of the  skies,” there are over 100,000 in our solar system, most between Mars and  Jupiter. Ceres, being the largest, was the first to be discovered. The Trojans  follow Jupiter; the Centaurs are out past Saturn. The empty ellipses in the  asteroid belt are called Kirkwood gaps, which reveal the effects of gravity on  even the smallest objects in the solar system, with the obvious  contenders—Jupiter and the sun—exerting the greatest pull. Light also nudges  asteroids, affecting spin and orbit: this is the Yarkovsky effect. Because  asteroids are difficult to see on their own, scientists measure their size by  measuring how much light reflects off them, or by comparing their size to a  star when an asteroid passes in front of one. Like everything else under the  sun, the size of asteroids is relative. In my Atari 2600 game named after them,  asteroids came in three sizes: small, medium, large. The player would operate a  small space ship capable of firing a laser cannon from a fixed position, always  forward. This often required flying toward one’s target. When struck, the large  asteroids would break into two medium asteroids, which in turn would break into  two small asteroids. The player could keep the ship in the middle of the screen  for only so long, until the asteroids closed in, then the ship had to start to  move, dodging and blasting asteroids. Occasionally an alien space ship would cross  the screen, haphazardly firing its own laser cannon. I received the game for  Christmas in 1981, when I was nine years old. Outer space was much on my mind  that year, thanks to The Empire Strikes  Back, which I saw in the theater three times in 1980 and 1981, and to the  various Star Wars action figures and  vehicles in my bedroom. In the film, after escaping the Empire’s attack on  Hoth, the Millennium Falcon has to fly through an asteroid field while being  pursued by Darth Vader. Han Solo lands his ship on a large asteroid, hiding in  what appears to be a tunnel but is actually the throat of an exogorth, or space  slug. The ship escapes from the space slug as its jaws are closing—in the nick  of time, which, of course, is also relative. I learned this one winter Sunday  when I fell into a groove while playing Asteroids, dodging vermin and hostile  fire while delivering my own. My score had climbed to over 400,000 by the time  my ship suffered its final collision. More than four hours had gone by. My  post-lunch video game session had extended into the dinner hour. Although it  was not yet completely dark, the sun was on the cusp of setting. There wasn’t  time to do anything meaningful outside. Because Atari games had no save  function and offered a limited number of “lives,” arcade-style, most games  lasted less than an hour. Later, playing games on PC, Mac, Nintendo,  PlayStation, and Xbox systems, a four-hour session became entirely  unremarkable—the average rather than the limit. The player can save, especially  before difficult battles or platforming maneuvers, or the game automatically  saves at certain points and drops the player there in the event of “death” so  the game can push forward, a continual overlapping forward with periodic,  slight steps backward. The goal is to keep the player playing, engrossed in the  experience. Some people have played themselves to death, or let their small  children starve to death while playing video games. I had school on Monday, but  was not yet given serious homework, so I had not shirked some other  responsibility during those four hours. The day was cold and overcast, nothing  much was happening. I was not missing some better alternative, except perhaps  rereading one of the few books I owned or playing with my action figures. After  all, as Robert Walser says, “Sundays have something parental and childish about  them.” When I noted my score, I saw that I had obliterated my earlier high  score and pushed the game—my playing of the game—into an alien sense of time.  My parents had gone on with their day around me, the world moved on its own  around me, the planet moved beneath me. But I felt as if I’d shifted it all  somehow in my favor, slowing its rotation in order to stay in front of the  potentially infinite asteroids tumbling around me.  